Is all diesel the same?

GuruJockStrap

GuruJockStrap

GuruJockStrap

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18 Oct 2002
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I normally fill my car up at Tesco but at the weekend decided to pop to the Shell garage round the corner.

Normally drive up to Northampton every Saturday and noticed that the MPG was more stable and higher than with the Tesco fuel.

Has my recent lack of sleep caught up with me or could that be possible?

I did add a bottle of Forte 2 tanks ago and not sure if its that working, the change in fuel supply or a combination of both.
 
Well, i found with Tesco's i got less MPG than i do at BP. Even if BP is 1-2p more.

Shell was horiffic price and about the same as Tesco's and not seen a esso around here.

So id go for BP everytime now. Not tried any of that go further red stuff yet, so not sure if that makes any differance.
 
No,

I find the quality of diesel varys so much, even from the same supplier!!!

I've found that generally it goes like this from worst to best:

Tesco Standard
Sainsburys Standard
Shell Standard
BP Standard
Shell Vpower
BP Ultimate

I generally find that BP Ultimate isn't worth it unless you hoon it everywhere, Shell VPOWER seems to be the best compromise for me with half driving like a tart for MPG and half driving like a loon.

HOpe that helps, thats just generally what I've found!

Ta

Greg
 
I think OllyM found something along these lines with a car of his families. I will show him this thread.
 
I'm led to believe, via another forum that Supermarket diesel gets you fewer miles per gallon,
 
I've heard that the supermarket diesel has a lot more additives than others. Suppose it's what they add that makes it better or worse than Shell etc.

Shell diesel is the cheapest in my area (Southampton) It's regularly 1-2p/l cheaper than the supermarket stuff
 
I do get slightly better MPG from Shell than Tescos. I've always avoided putting supermarket fuel in my common rail deisels anyway just to give the injectors a fighting chance of survival.
 
A taxi driver on here swears by BP Ultimate and even with the extra cost the extra MPG it gives makes it cheaper than the supermarket fuel. Gave my girlfriend strict order to just put Shell/BP diesel in her car same price as the supermarkets round here anyway.
 
MrFunex said:
I've heard this as well. Is there any truth in it?
Click to expand...

Heresay evidence says yes. Of course the problem is the people who are picky enough to use shell fuel are likely to be picky enough to make sure the water is drained out of the fuel filter more often etc etc.... Water in the fuel is going to kill the injectors just as much or more than supermarket fuel I would have thought..
 
mattpc said:
Heresay evidence says yes. Of course the problem is the people who are picky enough to use shell fuel are likely to be picky enough to make sure the water is drained out of the fuel filter more often etc etc.... Water in the fuel is going to kill the injectors just as much or more than supermarket fuel I would have thought..
Click to expand...

tell that to the people with the morrisons petrol that had Silicon deposits in it that ruined their MAF sensor

Supermarket petrol is different. Its not all the same, and the "heresay" evidence comes from people in the industry.
 
Cheers guys. Glad it's not just me.

Don't think I'll be going to Tesco (or any supermarket) again to be honest. The only reason I went to Tesco was the relatively cheap price in my area and the fact that I'd get around 50 clubcard points every time I filled up. But the difference in MPG was really noticeable. Even if it works out a pence or 2 more expensive, I'm sure it'll balance out simply due to the better economy.

Stuff I put in at Shell was the reduced sulphur diesel.

Whats Esso and BP fuel like? Think I might have to experiment with different diesel over the coming weeks.
 
MrLOL said:
tell that to the people with the morrisons petrol that had Silicon deposits in it that ruined their MAF sensor

Supermarket petrol is different. Its not all the same, and the "heresay" evidence comes from people in the industry.
Click to expand...

Hey, I'm on your side I avoid supermarket fuel wherever possible but I use cautious language because I don't personally have any hard evidence and many people scoff at my avoidence of supermarket fuel.:)
 
MrLOL said:
tell that to the people with the morrisons petrol that had Silicon deposits in it that ruined their MAF sensor

Supermarket petrol is different. Its not all the same, and the "heresay" evidence comes from people in the industry.
Click to expand...

Excuse my ignorance here, but how does dodgy fuel break a MAF sensor since the two never come into contact with one another?
 
I always try to fill up with Shell Diesel Extra, not sure what the 'extra' is but it's always the same price as the supermarkets so may aswell - after all, your getting something 'extra' for FREE! :p
 
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