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Supermarket fuel
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So I fill up my car at a supermarket (diesel) any my car started stammering and spluttering, bit of a Google search and followed the advice I found....Run the tank dry and fill up with shell V power and also change the fuel filter. Did this and after driving my car hard for about 5 miles the stammering and spluttering had gone, noticeable power increase and better mpg to go with it!!
So the advice is cheap isn't always best....certainly worth that few pence extra per litre. |
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Yea it's all produced in the same place but there is alot of different grades of fuel for different uses, the more you pay the higher the octane level so the better quality the fuel is, plus all the additives they put in |
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"I’ve used supermarket juice for decades and never had a problem. It’s produced in the same refineries as the expensive stuff; the only differences are in the additive cleaners etc."
Yes... 90% of forecourt fuel is exactly the same from the same refineries.
A few years ago, I remember seeing a test on TV where they raced a top performance road car against a (last season) F1 car. They filled both cars with the exact same fuel from a petrol station in a Tesco's... and they found less than 1% less of power in the F1 car compared to using proper Race fuel.
Cal |
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"20p+ is more than just a few pence to some who are on tight budgets anyway. "
From the Google search because my car wasn't running smooth it was recommended to use V power stuff to clean the fuel system out and then just every couple of tanks use some V power, the rest of the time standard shell, just not to go back to the supermarket fuel |
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"So what was the issue? Do you have a petrol car and you filled up at diesel?"
No I didn't fill up with the wrong fuel, it was the supermarket fuel causing running issues, did alot of research and there's alot of info about the difference in supermarket fuel and say BP and shell fuel, I was quite surprised |
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By (user no longer on site)
over a year ago
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"20p+ is more than just a few pence to some who are on tight budgets anyway.
From the Google search because my car wasn't running smooth it was recommended to use V power stuff to clean the fuel system out and then just every couple of tanks use some V power, the rest of the time standard shell, just not to go back to the supermarket fuel"
My point still stands, supermarket forecourts are cheaper. Making it more attractive to those who can't afford posh petrol.
I can't justify the extra £10-15 per tank |
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"So I fill up my car at a supermarket (diesel) any my car started stammering and spluttering, bit of a Google search and followed the advice I found....Run the tank dry and fill up with shell V power and also change the fuel filter. Did this and after driving my car hard for about 5 miles the stammering and spluttering had gone, noticeable power increase and better mpg to go with it!!
So the advice is cheap isn't always best....certainly worth that few pence extra per litre."
Well thats a load of balony as they always advise you to NEVER run your diesel dry so where you got your advice to do so is highly suspect.
As for supermarket fuels I would do some research both for petrol and diesel its all the same octane for each the only difference is the major people like BP, Shell etc put in additives to try and justify the extra price.
It does go to show a lot of people are just gullible.  |
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"Yea it's all produced in the same place but there is alot of different grades of fuel for different uses, the more you pay the higher the octane level so the better quality the fuel is, plus all the additives they put in"
You seem like an expert. Could you tell me the difference in "octane" between let's say Tesco standard diesel and shell standard diesel ? |
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"Yea it's all produced in the same place but there is alot of different grades of fuel for different uses, the more you pay the higher the octane level so the better quality the fuel is, plus all the additives they put in
You seem like an expert. Could you tell me the difference in "octane" between let's say Tesco standard diesel and shell standard diesel ?"
No expert here just done some research that's all, "95 octane" and "97 octane" is the difference and the different additives help prevent the carbon build up on egr valves and such....just thought I'd share what I've researched that's all |
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"Yea it's all produced in the same place but there is alot of different grades of fuel for different uses, the more you pay the higher the octane level so the better quality the fuel is, plus all the additives they put in
You seem like an expert. Could you tell me the difference in "octane" between let's say Tesco standard diesel and shell standard diesel ?"
On diesel its the same cetane level out of one of the 4 main refinery's in the UK the only difference is the additives that really are not necessary as engines are designed to work world wide.
If supermarkets were selling diesel that was substandard it would be in the press and you would be able to find thousands of claims against them for damage which you can't. Petrol is slightly different with 95 octane as standard unleaded but super unleaded does vary from 97 to 99 octane in uk pumps. |
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By *ocks99Man
over a year ago
Reading |
"20p+ is more than just a few pence to some who are on tight budgets anyway.
From the Google search because my car wasn't running smooth it was recommended to use V power stuff to clean the fuel system out and then just every couple of tanks use some V power, the rest of the time standard shell, just not to go back to the supermarket fuel"
Would that be the 'Shell' website by any chance?  |
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Was talking fuel prices with my mum last night.
My nearest station, BP was 127.9 per litre on Saturday
Tesco 122.8 per litre
Half filled my tank before heading to visit her in
I've used just over a ¼ tank getting there.
Her local Tesco 117.6 per litre
I fill it fully before I leave. My tank holds 70L I can save upto £7 on a full tank compared to my nearest place.
I visit my mum 4-5 times a month, £20+ monthly, £240+ yearly saved by working out where is cheapest.
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By (user no longer on site)
over a year ago
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You should never run a diesel engine dry, it won't start even when you refill it, you'll need a mechanic.
I do around 80k miles a year on Tesco fuel, no issue whatsoever. |
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By (user no longer on site)
over a year ago
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Having worked on refurbishing shell forecourts and filling stations shell V power diesel is slightly different to normal diesel it has a slightly lower octane rating is less dense and has less odour and colour to normal diesel. In theory the power should be slightly less than normal diesel but this is offset by additives it does burn leaner and ignites easier than standard diesel producing less soot. Hope this answers your question it was developed for clean burn performance engines..J |
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Same fuel, same refinery..but different additives........that comes from a former colleague who once worked at a refinery..........
........the bigger concern for me right now is yet again approaching a bank hol, prices always rise....that is just profiteering by the supermarkets.. |
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"Same fuel, same refinery..but different additives........that comes from a former colleague who once worked at a refinery..........
........the bigger concern for me right now is yet again approaching a bank hol, prices always rise....that is just profiteering by the supermarkets.."
trick is fill up before the bank holiday |
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"Having worked on refurbishing shell forecourts and filling stations shell V power diesel is slightly different to normal diesel it has a slightly lower octane rating is less dense and has less odour and colour to normal diesel. In theory the power should be slightly less than normal diesel but this is offset by additives it does burn leaner and ignites easier than standard diesel producing less soot. Hope this answers your question it was developed for clean burn performance engines..J"
Interesting! It does come from the same refinery the only difference is the additives and UK cetane levels are standardised buy law if it is a lower cetane level it has to be declared by law at the pump. I think you are confusing petrol with diesel. |
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By (user no longer on site)
over a year ago
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Utter bollocks that supermarket fuel was the cause.
The only time it will matter is if you’re running a car mapped up to a certain fuel, always make me laugh when you hear people telling you about their box standard 100bhp car doesn’t like supermarket fuel.
From experience a type R, a Subaru at over 300bhp and a 335D at over 360bhp all run perfectly fine on supermarket fuel. |
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"Utter bollocks that supermarket fuel was the cause.
The only time it will matter is if you’re running a car mapped up to a certain fuel, always make me laugh when you hear people telling you about their box standard 100bhp car doesn’t like supermarket fuel.
From experience a type R, a Subaru at over 300bhp and a 335D at over 360bhp all run perfectly fine on supermarket fuel."
you run your scooby of supermarket fuel  |
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Some people believe the smoke and mirrors put out by the big brands and its so funny they do. There are regulations on fuel set by the government and duties paid on fuel at very specific tolerances but hey If I was shell and selling at a higher price I would come up with all sorts of scare tactics and bullshit to make people buy it why not life is full of sheep and believers!  |
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By (user no longer on site)
over a year ago
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"Having worked on refurbishing shell forecourts and filling stations shell V power diesel is slightly different to normal diesel it has a slightly lower octane rating is less dense and has less odour and colour to normal diesel. In theory the power should be slightly less than normal diesel but this is offset by additives it does burn leaner and ignites easier than standard diesel producing less soot. Hope this answers your question it was developed for clean burn performance engines..J
Interesting! It does come from the same refinery the only difference is the additives and UK cetane levels are standardised buy law if it is a lower cetane level it has to be declared by law at the pump. I think you are confusing petrol with diesel. "
Think you need to correct your statement...I know my facts..J.. |
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"Yea it's all produced in the same place but there is alot of different grades of fuel for different uses, the more you pay the higher the octane level so the better quality the fuel is, plus all the additives they put in
You seem like an expert. Could you tell me the difference in "octane" between let's say Tesco standard diesel and shell standard diesel ?"
it has nothing to do with octane! the refinery produces "Raw" fuel the fuel companies then add additives at to loading gantry as it enters the road tanker, trust me there is a lot of difference between running on "supermarket" fuel and well known brands, both in the cleaning of fuel system etc and MPG |
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"Having worked on refurbishing shell forecourts and filling stations shell V power diesel is slightly different to normal diesel it has a slightly lower octane rating is less dense and has less odour and colour to normal diesel. In theory the power should be slightly less than normal diesel but this is offset by additives it does burn leaner and ignites easier than standard diesel producing less soot. Hope this answers your question it was developed for clean burn performance engines..J
Interesting! It does come from the same refinery the only difference is the additives and UK cetane levels are standardised buy law if it is a lower cetane level it has to be declared by law at the pump. I think you are confusing petrol with diesel.
Think you need to correct your statement...I know my facts..J.."
Clearly you don't diesel is not measured in octaine. |
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"Having worked on refurbishing shell forecourts and filling stations shell V power diesel is slightly different to normal diesel it has a slightly lower octane rating is less dense and has less odour and colour to normal diesel. In theory the power should be slightly less than normal diesel but this is offset by additives it does burn leaner and ignites easier than standard diesel producing less soot. Hope this answers your question it was developed for clean burn performance engines..J
Interesting! It does come from the same refinery the only difference is the additives and UK cetane levels are standardised buy law if it is a lower cetane level it has to be declared by law at the pump. I think you are confusing petrol with diesel.
Think you need to correct your statement...I know my facts..J.."
Fuel is standardised and must conform to a spec. Premium diesel is a different spec but supermarket premium and v power is the same thing (give or take a few additives) |
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"I remember reading something that said supermarket fuel was full of silicone , it may have just been a load of rubbish but that's what I read ."
Why on earth would the supermarkets want to add silicone to it? |
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By (user no longer on site)
over a year ago
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There’s also a fungus that grows in diesel, clogs up the injectors and fuel filter.
I had that when I stopped at a texaco garage. New fuel filter and good diesel and my work car was good as new.
I’ve gone back to a petrol car but I still avoid the supermarket fuel as the car just burns through it in no time.
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I'd like an extensive test to evaluate the fuel performance economics, showing the price differential where it's not worth spending x pence per litre more on the non-supermarket fuels.
I've used both, like most people but generally use supermarket diesel and not noticed lower performance. I monitor my mpg during every drive and longer-term. |
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"Yea it's all produced in the same place but there is alot of different grades of fuel for different uses, the more you pay the higher the octane level so the better quality the fuel is, plus all the additives they put in
You seem like an expert. Could you tell me the difference in "octane" between let's say Tesco standard diesel and shell standard diesel ?
it has nothing to do with octane! the refinery produces "Raw" fuel the fuel companies then add additives at to loading gantry as it enters the road tanker, trust me there is a lot of difference between running on "supermarket" fuel and well known brands, both in the cleaning of fuel system etc and MPG "
Thats just blowing smoke up peoples arses additives don't make a car more efficient at all. Also additives are not added in the loading gantry they are blended in prior to that to ensure and even mix.
Driving a diesel at above 2500rpm for 20 mins has far more effect on the way a diesel runs and maintains the efficiency of the DPF. |
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"I use Tesco super unleaded as it's the same as B.P.'s but only 124.9p at my local compared to B.P. charging 138.9p a litre for the same 99 octane fuel."
Ahh but BP have a wizard and a Rabbi giving a magical spell and a blessing to each tanker so it MUST be better BP say so and worth forking the extra for. |
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"I use Tesco super unleaded as it's the same as B.P.'s but only 124.9p at my local compared to B.P. charging 138.9p a litre for the same 99 octane fuel.
Ahh but BP have a wizard and a Rabbi giving a magical spell and a blessing to each tanker so it MUST be better BP say so and worth forking the extra for. "
I'm Pagan, my car was remapped by druids  |
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"I remember reading something that said supermarket fuel was full of silicone , it may have just been a load of rubbish but that's what I read .
Why on earth would the supermarkets want to add silicone to it? "
Apparently tainted fuel has silicone in it. |
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"So I fill up my car at a supermarket (diesel) any my car started stammering and spluttering, bit of a Google search and followed the advice I found....Run the tank dry and fill up with shell V power and also change the fuel filter. Did this and after driving my car hard for about 5 miles the stammering and spluttering had gone, noticeable power increase and better mpg to go with it!!
So the advice is cheap isn't always best....certainly worth that few pence extra per litre."
Get your car serviced. Better still change your car. I use nothing else but premium fuel but then I drive a brand new car |
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By *ocks99Man
over a year ago
Reading |
"I remember reading something that said supermarket fuel was full of silicone , it may have just been a load of rubbish but that's what I read .
Why on earth would the supermarkets want to add silicone to it?
Apparently tainted fuel has silicone in it."
Cock up at production iirc. Silicone reduces foaming in diesel (pita if you're in a hurry) yet got added to a petrol batch for Tesco by mistake. Clogged up the lambda sensor end sent the ECUs haywire.  |
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By (user no longer on site)
over a year ago
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I use Tesco’s momentum in my car that is mapped for 99ron fuel it’s only a couple pence more than there regular fuel an cheaper than the Esso near me for there 95ron fuel, and my car runs fine pulls hard same as 99ron vpower which is mega bucks |
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By (user no longer on site)
over a year ago
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"Having worked on refurbishing shell forecourts and filling stations shell V power diesel is slightly different to normal diesel it has a slightly lower octane rating is less dense and has less odour and colour to normal diesel. In theory the power should be slightly less than normal diesel but this is offset by additives it does burn leaner and ignites easier than standard diesel producing less soot. Hope this answers your question it was developed for clean burn performance engines..J
Interesting! It does come from the same refinery the only difference is the additives and UK cetane levels are standardised buy law if it is a lower cetane level it has to be declared by law at the pump. I think you are confusing petrol with diesel.
Think you need to correct your statement...I know my facts..J..
Clearly you don't diesel is not measured in octaine. "
Lol I know...spell checker/predictive texting type cetane and it changes to octane...I run supermarket fuel...as the price difference for the mileage I do a year far outweighs any benefit a premium fuel offers...good servicing is the best one and dont let tanks run empty as condensation can build in them especially..... |
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"Having worked on refurbishing shell forecourts and filling stations shell V power diesel is slightly different to normal diesel it has a slightly lower octane rating is less dense and has less odour and colour to normal diesel. In theory the power should be slightly less than normal diesel but this is offset by additives it does burn leaner and ignites easier than standard diesel producing less soot. Hope this answers your question it was developed for clean burn performance engines..J
Interesting! It does come from the same refinery the only difference is the additives and UK cetane levels are standardised buy law if it is a lower cetane level it has to be declared by law at the pump. I think you are confusing petrol with diesel.
Think you need to correct your statement...I know my facts..J..
Clearly you don't diesel is not measured in octaine.
Lol I know...spell checker/predictive texting type cetane and it changes to octane...I run supermarket fuel...as the price difference for the mileage I do a year far outweighs any benefit a premium fuel offers...good servicing is the best one and dont let tanks run empty as condensation can build in them especially....."
No it doesn't change cetane to octaine thats bullshit i have just checked! Wow spell check changed I don't think so to bullshit I would never have guessed that.
I do like the ops save though it made me chuckle |
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Diesel engines are not designed to work world wide.
Google it, for years and years BMW/Merc/VW would not send their diesel cars to the US. The Reason? Their deisel fucks up the engine.
On a tractor/truck its not gonna matter, they are made to run on slop. On a bmw 5 series with 3 turbos, it will 100% matter.
Saying all that, do the additives do anything inside europe? compared to additive free stuff? I dunno. |
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By (user no longer on site)
over a year ago
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From what Iv heard supermarkets fuel is low grade fuel hence the price the knock it out at
So the advice about putting the quality fuel is good advice and the new filter too because if you run your tank down to bare minimum all the shit at the bottom of the tank will find its way through , the filler will cope with the majority although with clog up , but some shit will find its way through and could cause bad damage to the engine |
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"From what Iv heard supermarkets fuel is low grade fuel hence the price the knock it out at
So the advice about putting the quality fuel is good advice and the new filter too because if you run your tank down to bare minimum all the shit at the bottom of the tank will find its way through , the filler will cope with the majority although with clog up , but some shit will find its way through and could cause bad damage to the engine "
I was led to believe that “shit at the bottom of the tank” is a 20th century problem. The quality of fuel transport, storage and pumping, and of the materials used to make vehicle fuel tanks mean that very little particulate matter is generated. |
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Wow get stuck in at work and come back to name calling and such on a thread....ffs people, everyone is entitled to their own opinion and if they have knowledge about it from work aswell....
I had been having some issues with my car and I researched for solutions, went on various sites like AA, RAC and also some car owners forums as they tend to post good advice too, the advice I found did help with the problems I was having, you can run a tank dry, fill up and away you go but it is recommended to change the filter because of sediment build up and condensation build up in the tank clogging the fuel filter. I changed my filter last year when I was doing some work on my car and it was a Halfords filter as finances didn't allow for the recommended delphi filter but now have said filter on the car.
Shell have their own refinary to supply their business and then everywhere else gets it from another refinary or the shell one, there is a minimum standard for fuel in this country so cars can run ok on the fuel so some companies provide fuel that's above this minimum standard at a higher price for people who want that little extra. cars will run on the standard fuel with no problems but there is some cars that pick up little problems...that's the luck of the draw and life.
I made the thread to get a bit of a discussion going about it and just in case some people are having problems with their car and it's something pretty simple they can try before forking out a fortune in the garage...also tried to keep it a little light hearted too so sorry if anyone has been offended.
Let's just go back to rating cocks shall we....  |
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"Yea it's all produced in the same place but there is alot of different grades of fuel for different uses, the more you pay the higher the octane level so the better quality the fuel is, plus all the additives they put in
You seem like an expert. Could you tell me the difference in "octane" between let's say Tesco standard diesel and shell standard diesel ?
No expert here just done some research that's all, "95 octane" and "97 octane" is the difference and the different additives help prevent the carbon build up on egr valves and such....just thought I'd share what I've researched that's all "
Clearly no expert! On that we can agree!! |
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"Yea it's all produced in the same place but there is alot of different grades of fuel for different uses, the more you pay the higher the octane level so the better quality the fuel is, plus all the additives they put in
You seem like an expert. Could you tell me the difference in "octane" between let's say Tesco standard diesel and shell standard diesel ?
No expert here just done some research that's all, "95 octane" and "97 octane" is the difference and the different additives help prevent the carbon build up on egr valves and such....just thought I'd share what I've researched that's all
Clearly no expert! On that we can agree!! "
Would you like to enlighten me then seen as though your full of knowledge.... |
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By (user no longer on site)
over a year ago
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"So I fill up my car at a supermarket (diesel) any my car started stammering and spluttering, bit of a Google search and followed the advice I found....Run the tank dry and fill up with shell V power and also change the fuel filter. Did this and after driving my car hard for about 5 miles the stammering and spluttering had gone, noticeable power increase and better mpg to go with it!!
So the advice is cheap isn't always best....certainly worth that few pence extra per litre."
Sorry but it was most likley just a clogged fuel filter.
Super marker fuel is just the base stuff without a few fancy aditives.
High octane fuel isn't really of any benefit unless your engine is actively knocking which a stock csr wont be.
the premium fuels do tend to have some additives that can help such as detergents but nothing major
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"Yea it's all produced in the same place but there is alot of different grades of fuel for different uses, the more you pay the higher the octane level so the better quality the fuel is, plus all the additives they put in
You seem like an expert. Could you tell me the difference in "octane" between let's say Tesco standard diesel and shell standard diesel ?
No expert here just done some research that's all, "95 octane" and "97 octane" is the difference and the different additives help prevent the carbon build up on egr valves and such....just thought I'd share what I've researched that's all
Clearly no expert! On that we can agree!!
Would you like to enlighten me then seen as though your full of knowledge...."
You don't measure diesel in octane. |
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By (user no longer on site)
over a year ago
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"20p+ is more than just a few pence to some who are on tight budgets anyway.
From the Google search because my car wasn't running smooth it was recommended to use V power stuff to clean the fuel system out and then just every couple of tanks use some V power, the rest of the time standard shell, just not to go back to the supermarket fuel"
If your cleaning iy use a dedicated cleaning addative or have your injectors cleaned. Relying on fuel to do ir with a fraction of a % detergent isnt going to help if your maintenance has been bad enough filters/pumps/injectors are clogged
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By (user no longer on site)
over a year ago
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"Utter bollocks that supermarket fuel was the cause.
The only time it will matter is if you’re running a car mapped up to a certain fuel, always make me laugh when you hear people telling you about their box standard 100bhp car doesn’t like supermarket fuel.
From experience a type R, a Subaru at over 300bhp and a 335D at over 360bhp all run perfectly fine on supermarket fuel. you run your scooby of supermarket fuel "
Yeah me too. For the 10 years I had a scooby. And never once a fuel/engine issue. |
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"Utter bollocks that supermarket fuel was the cause.
The only time it will matter is if you’re running a car mapped up to a certain fuel, always make me laugh when you hear people telling you about their box standard 100bhp car doesn’t like supermarket fuel.
From experience a type R, a Subaru at over 300bhp and a 335D at over 360bhp all run perfectly fine on supermarket fuel."
Baffles me why people want to change perfectly good standard parts for superior after market parts on a car just to increase performance and then run said cars on a standard fuel when there is a superior fuel available for high performance cars....that to me is utter bollocks....but that's just my opinion |
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"Utter bollocks that supermarket fuel was the cause.
The only time it will matter is if you’re running a car mapped up to a certain fuel, always make me laugh when you hear people telling you about their box standard 100bhp car doesn’t like supermarket fuel.
From experience a type R, a Subaru at over 300bhp and a 335D at over 360bhp all run perfectly fine on supermarket fuel.
Baffles me why people want to change perfectly good standard parts for superior after market parts on a car just to increase performance and then run said cars on a standard fuel when there is a superior fuel available for high performance cars....that to me is utter bollocks....but that's just my opinion"
Because all fuel is 'standard' fuel.
And perhaps the people involved and invested in gaining performance know better than to believe the snake oil bullshit 'resesrch' on the Internet throws up. |
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"Utter bollocks that supermarket fuel was the cause.
The only time it will matter is if you’re running a car mapped up to a certain fuel, always make me laugh when you hear people telling you about their box standard 100bhp car doesn’t like supermarket fuel.
From experience a type R, a Subaru at over 300bhp and a 335D at over 360bhp all run perfectly fine on supermarket fuel.
Baffles me why people want to change perfectly good standard parts for superior after market parts on a car just to increase performance and then run said cars on a standard fuel when there is a superior fuel available for high performance cars....that to me is utter bollocks....but that's just my opinion
Because all fuel is 'standard' fuel.
And perhaps the people involved and invested in gaining performance know better than to believe the snake oil bullshit 'resesrch' on the Internet throws up."
Yes all fuel has a 'minimum' standard that's why there is different levels of octane levels in petrol.
Just because you can unbolt a few parts on a car and bolt parts back on doesn't mean they know better than others. |
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By (user no longer on site)
over a year ago
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"Utter bollocks that supermarket fuel was the cause.
The only time it will matter is if you’re running a car mapped up to a certain fuel, always make me laugh when you hear people telling you about their box standard 100bhp car doesn’t like supermarket fuel.
From experience a type R, a Subaru at over 300bhp and a 335D at over 360bhp all run perfectly fine on supermarket fuel.
Baffles me why people want to change perfectly good standard parts for superior after market parts on a car just to increase performance and then run said cars on a standard fuel when there is a superior fuel available for high performance cars....that to me is utter bollocks....but that's just my opinion"
Who said anything about changing parts? Those figures are easily obtainable through remapping.
Like I said, unless you’re specifically tuning to a certain fuel on a rolling road then you’ve nothing to worry about.
I’ve tried different fuels on timed races.....it made fuck all difference.
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"Utter bollocks that supermarket fuel was the cause.
The only time it will matter is if you’re running a car mapped up to a certain fuel, always make me laugh when you hear people telling you about their box standard 100bhp car doesn’t like supermarket fuel.
From experience a type R, a Subaru at over 300bhp and a 335D at over 360bhp all run perfectly fine on supermarket fuel.
Baffles me why people want to change perfectly good standard parts for superior after market parts on a car just to increase performance and then run said cars on a standard fuel when there is a superior fuel available for high performance cars....that to me is utter bollocks....but that's just my opinion
Because all fuel is 'standard' fuel.
And perhaps the people involved and invested in gaining performance know better than to believe the snake oil bullshit 'resesrch' on the Internet throws up.
Yes all fuel has a 'minimum' standard that's why there is different levels of octane levels in petrol.
Just because you can unbolt a few parts on a car and bolt parts back on doesn't mean they know better than others. "
And just because you read some shite on the Internet doesn't mean you are qualified to spout it as fact.
You do realise that these people who can 'bolt a few' parts on didn't have to Google what was wrong with their car to be told to change a Halfords fuel filter? They likely also have evidence that supermarket fuel makes no difference in the form of dyno results, race finishes or 1/4 mile times etc.
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By (user no longer on site)
over a year ago
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Do not underestimate “bolt on parts”
A turbo conversion on a K20 engine will see you between 500-700bhp (after forging of course) depending on how brave you are |
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"Do not underestimate “bolt on parts”
A turbo conversion on a K20 engine will see you between 500-700bhp (after forging of course) depending on how brave you are "
Bolt ons are fantastic!! There is a turbo specialist in Wakefield that can machine your existing turbo, change what ever parts are needed and it's capable of massive gains, not sure on how much as they didn't say and the price is quite reasonable too |
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Right....cars running like a bag of shite, empty the tank, pulled into shell, filled up with v power diesel, had a drive about for half an hour, parked up at home, got up for work the next morning, cars running like a dream, same route, driving style, weather and traffic. Why is it running like a dream when the only thing that's changed is the diesel I'm running?? |
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Keep away from Morrison’s and stick to the major brands like Shell, Esso and BP
Also use service stations that sell lots of petrol so there is less chance of it being stale. Some rural stations can have full in the tank for weeks. |
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By (user no longer on site)
over a year ago
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Could even be the start of an EGR valve issue - might be starting to stick.
Had a problem with mine a while back.
Took me a while to figure it out, but was pretty easy to sort out and clean |
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By (user no longer on site)
over a year ago
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"Utter bollocks that supermarket fuel was the cause.
The only time it will matter is if you’re running a car mapped up to a certain fuel, always make me laugh when you hear people telling you about their box standard 100bhp car doesn’t like supermarket fuel.
From experience a type R, a Subaru at over 300bhp and a 335D at over 360bhp all run perfectly fine on supermarket fuel.
Baffles me why people want to change perfectly good standard parts for superior after market parts on a car just to increase performance and then run said cars on a standard fuel when there is a superior fuel available for high performance cars....that to me is utter bollocks....but that's just my opinion"
Because its not "superior" high octane fuel is typically for very high compression ratios to prevent premature detonation.
If you're engine aint knocking youre not getti ng anything from it |
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By (user no longer on site)
over a year ago
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"Right....cars running like a bag of shite, empty the tank, pulled into shell, filled up with v power diesel, had a drive about for half an hour, parked up at home, got up for work the next morning, cars running like a dream, same route, driving style, weather and traffic. Why is it running like a dream when the only thing that's changed is the diesel I'm running??"
Its a desil and you did a half hour drive draining it instead of just commuting so cleared your dpf filter?
You also said you changed your fuel filter before |
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"Right....cars running like a bag of shite, empty the tank, pulled into shell, filled up with v power diesel, had a drive about for half an hour, parked up at home, got up for work the next morning, cars running like a dream, same route, driving style, weather and traffic. Why is it running like a dream when the only thing that's changed is the diesel I'm running??"
And the filter..
IF the fuel from the supermarket caused an issue it will be through contamination from either bad tanks or condensation. This can happen at bp/esso/shell etc as well and compared to my local petrol stations I would trust tesco to be better at looking after things properly.
Also you said that you did some hard driving which also has the effect of helping clear your dpf, the dpf may have also undergone a regen in between those fill ups.
A changed filter and change in driving style can also cause the ecu to adjust it's learned perameters and adjust fuel trim and timing to allow it to run properly.
You could also have had condensation built up in you tank causing the water trap to be full which would be resolved by the fuel filter change.
Or maybe you ran your car too low and caused air to enter the fuel system which took time and a thrashing to resolve.
Maybe fault caused your car to go into limp mode or a pothole or puddle caused water to enter where it shouldn't or an intermittent connection.
All far more likely than "supermarket fuel being shit" |
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By (user no longer on site)
over a year ago
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"Right....cars running like a bag of shite, empty the tank, pulled into shell, filled up with v power diesel, had a drive about for half an hour, parked up at home, got up for work the next morning, cars running like a dream, same route, driving style, weather and traffic. Why is it running like a dream when the only thing that's changed is the diesel I'm running??"
The first thing you’ll be told to do with a diesel that’s running ropey is take it for a decent run out.
No matter which brand of diesel you put in, in this circumstance it would of had the same outcome. |
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Did the old drive hard a few times before trying the different diesel with no change, the filter got changed 2 days after using different diesel, yes there could have been a number of factors that I'm not aware of with condensation in the tank and such, guess it will just be put down to a damn good coincidence |
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