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tyler s
Is supermarket fuel different to premium fuels . ie poor quality etc
STEADS
Hi a lot of it is shell petrol without maybe the additives texaco sainsburys asda morrisons even bp come out of the essar refinery in ellesmere port formely shell like castrol make ford oil yes ford oil is gtx so next time you have a service weigh up the price of ford oil and castrols own brand personely i dont know the price difference but i bet it does vary also its a myth that diesel engine oil is different than normal say 10w40 petrol engine oil trust me .and by the way shell will not sell a crap product it is more than likely the customers/supermarkets storage tanks and they will never sell an off spec engine oil every thing is rigourously tested before it leaves the depot.

steads
Pitmonster
All fuel must meet ISO standards, so there's really no such thing as "poor quality".

Shell and BP etc put additives and detergents into their fuels, but how effective are they, and are they worth the money?
It's worth noting that Tesco do a 99 RON unleaded that is rated very highly.

Also, as Steads has said, the brand at the petrol station may not truly represent the refinery that the fuel came from - if the nearest Shell refinery is 150 miles away but there's a BP one 2 miles away, guess where the Shell petrol station got its fuel from...

And of course Tesco, Asda and the like don't have their own fuel refineries so they probably buy it from BP or whoever anyway.
artscot79
not the same im afraid supermarket fuels have more cleaning additive added to them ask any breakdown company and any serious car nut the fuel is cheaper though.

ive tested it from running the car to the red warning light on the fuel then used 30 quid of shell i got compared to asda fuel 15mpg more and the car was more responsive and just seemed happier my old mans c4 vtr was feeling sluggish and he always bought supermarket fuels he changed to shell and noticed the difference.

i had an issue with my old car whee it just felt sluggish ford tried everything and in the end asked where ide been fueling up i told them the supermarket and they advised to change simply put all fuel has cleaning additive its the amount asda may sell you £5 of fuel but 85p of that is cleaning fluid shell sell the same £5 but only 11p is cleaning fluid.

and to add to that my mate works for a recovery company and has had call outs to juddering and rough running cars in most cases filling upo with non supermarket fuel solves the issue. i wont have that nasty stuff near my car if im honest i get better mpg and distance from shell
ChrisH
I agree with artscot..... I personally mix it up, 1 week supermarket fuel, week after branded etc etc. Car seems to run OK...
btmaldon
I can agree with the above. I regularly do a run from Essex to the Welsh side of Shropshire. As we only have asda where I live I fill up with the stuff. Before returning I fill up at an Esso Garage. I get 5mpg better on the return journey every time driving exactly the same style. Dont tell me its uphill going there.
jeebowhite
I personally prefer to spend the extra penny and go to Shell every time now. I wont use supermarket fuel if I can avoid it.... you get more MPG out of decent fuel, supermarket is cheaper, dirtier, and less refined than premium fuels such as shell and the likes of its range.

Pitmonster, whilst I agree that all fuel needs to meet certain standards, that doesnt necessarily mean they are all at the same level above that minimum. Supermarket fuels (some) can only just brush the top of the standards, whereas the likes of premium fuels, will soar above them...

Its worth trying decent fuel for a month. I recently had some poor MPG with my car, purely down to the air filter and sparkies, but on swapping to 'proper' fuel I gained an extra 2MPG, which was still bad, but better than losing that with supermarket fuel. Now that I have had the car serviced and maintained fully, I am back to a very health MPG (except the freezing temperatures knocking them down!)
john47
From [url="http://www.whatcar.com/car-news/what-car-q-and-a/is-supermarket-petrol-different/215240"]What Car?[/url]

[i]Q: Is it true that the fuel sold at supermarket petrol stations is not of the same quality as that as you would buy from a dedicated petrol station?
Alex Wells

A: According to the Petrol Retailers Association, there is no difference between the standard petrol you buy from supermarkets or franchised petrol stations. In most cases the petrol and diesel is even produced at the same refinery and delivered in the same trucks.

The exception to this is specialist fuels, such as Shell’s Optimax and BP’s Ultimate. In their case, the fuel is enhanced with additives, which produce that brand’s particular properties.[/i]
posted by [url="http://www.metafilter.com/user/17244"]knapah[/url] at [url="http://ask.metafilter.com/131490/Mythbust-supermarket-petrol-for-me-please#1878775"]12:32 PM[/url] on August 30, 2009 [[url="http://ask.metafilter.com/favorited/4/1878775"]2 favorites[/url]]
stef123
I know in central scotland, our fuel comes from grangemouth... and sainsburys near where i live, their fuel is delivered in a bp lorry.. i believe the only difference is the additives. The pumps and fuel are sampled on a regular basis to make sure they meet the standards..
ijustwantafile
[quote name='Pitmonster' timestamp='1328476026' post='164978']

It's worth noting that Tesco do a 99 RON unleaded that is rated very highly.

[/quote]

Do they still do 99? every tesco i've been to lately have an "out of service" thing attached to them.
Pitmonster
[quote name='ijustwantafile' timestamp='1328807799' post='165714']


Do they still do 99? every tesco i've been to lately have an "out of service" thing attached to them.
[/quote]
I must admit that I never noticed this, as I drive a diesel ;-)
Stoney871
Momentum 99 is readily available down in Devon.
Maybe there's just not a big enough demand where you are.
artscot79
Having worked for a large petrol station the fuel has depending on the brand more additives in it i gaurantee you that if you use supermarket fuel then use shell normal fuel you will notice the difference
stef123
[quote name='artscot79' timestamp='1328830536' post='165819']
Having worked for a large petrol station the fuel has depending on the brand more additives in it i gaurantee you that if you use supermarket fuel then use shell normal fuel you will notice the difference
[/quote]

my mk1 focus was like this...except it ran better on sainsburys than the shell stuff strangely
artscot79
maybe depends on what its used to god only knows
mjt
From what I've read elsewhere in some cases the additives are added as the fuel is loaded into the tanker and the tankers carry different grades of fuel in different compartments, so just because you see a BP tanker at a supermarket does not mean they're getting the same as a branded station.

We've stopped buying supermarket diesel because we believe branded fuel is better for the fuel system, particularly in common-rail engines. My understanding is that because of the very fine clearances in the high-pressure pump it benefits from the extra lubricity of a branded fuel. I reckon it's worth spending a few pence more on fuel to save a potential £1000 for a new pump.
NorthSussex
[color=#0000ff][size=5][font=comic sans ms,cursive]If Supermarket fuel was inferior to branded fuel, wouldn’t branded fuel companies use that in they’re advertising to persuade people to use it instead of the Supermarket fuel? Just a thought.[/font][/size][/color]
btmaldon
They do use the benefits of their fuel in their advertising, but in this country advertisers are not allowed to slag off the competition.
Pidu
[quote name='ndsussex' timestamp='1328888041' post='165892']
[color=#0000ff][size=5][font=comic sans ms,cursive]If Supermarket fuel was inferior to branded fuel, wouldn’t branded fuel companies use that in they’re advertising to persuade people to use it instead of the Supermarket fuel? Just a thought.[/font][/size][/color]
[/quote]

Would it not be against the law? You can show, how good your product is compared to all others (anonymous) but you can not say that product sold by Tesco, Sainsburys etc is shitty.
NorthSussex
[color=#0000ff][size=5][font=comic sans ms,cursive]Yes but they could indicate the advantages of there fuel without naming, as other advertisers do with other products. I would guess all fuels are all the same or we would have heard from the likes of Which or the motoring mags.[/font][/size][/color]
artscot79
next time you break down after filling up wait for aa rac or green flag and the first thing they will ask is do you use supermarket fuel my sisters car did this and the guy told her to fill her old turbo diesel up at shell or bp and the prioblem was solved.

the breakdown companies are all aware that most problems have occured after using supermarket fuel and having worked in a petrol station its true that the additives are added to the tank as the fuel is pumped into it cheaper fuel is more additive nothing to do with buying huge quantities
pragmatix
[i]Having run a variety of cars that are suposedly dodgy Renault Laguna 2.2 DCI and A citroen C5 2.2[/i] HDi on both supermarket fuel and main supplier fuels over a 100K miles in both case I cant say I have ever been able to tell which fuel I was using, the biggest factor in economy/performance is and has been weather, terrain and traffic conditions, to many variables to come to a cast Iron conclusion.
Contaminated fuel is not restricted to supermarkets
poshpawsfiesta
[quote name='ndsussex' timestamp='1328894162' post='165913']
[color=#0000ff][size=5][font=comic sans ms, cursive]Yes but they could indicate the advantages of there fuel without naming, as other advertisers do with other products. I would guess all fuels are all the same or we would have heard from the likes of Which or the motoring mags.[/font][/size][/color]
[/quote]
i work for esso , the simple reason is why slag of you own brand ??? esso supply tesco with fuel but with out the additives, esso fuel has additives equivilent to the extra price in the fuel , i.e tesco unleaded 1.30 esso unleaded 1.37 that means esso fuel has 7p worth of additives & cleaners per litre etc i think bp supplies sainsburys etc etc esso its self doesnt loose money weather you buy it from tesco or esso :)
poshpawsfiesta
also the choice people make about where they go is normally down to convineince i.e if you passing a petrol garage you think ill fill up here because im passing, 95% of people couldnt care what fuel it is esso bp shell tesco etc, also second is the on site facilities people will think ill fill up at that one on the way home because i can use the loo or grab a coffie and a crossiant instead of having to go to the bakery aswell or maby do a quick shop rather than filling up and then going on to a supermarket :) onsite facilities are very important to the sucsess of a petrol station.
eddiestopa
I have always thought my engine feels smoother and a bit more responsive when filled up with Shell. I have not yet noticed improvement in MPG, although I rarely measures them.


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