Premium petrol

Chippy_boy said:
I'd be staggered if any noticeable difference actually exists to be honest, I don't doubt that you feel it does however. Smoother delivery of power sounds a bit like the sort of things hifi buffs say about a stupidly expensive speaker cable which in reality sounds identical to a bent coat hanger.
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No, definitely feel the difference. I can accelerate quicker with premium fuel in the tank. Don't get me started on Hifi cables though; I have a work colleague who spent £260/meter for un-terminated speaker cables, and £600.00 for a single stereo pair phono lead for connecting his CD player to his amp.
 
Dave Ewing's Back 'eader said:
I just filled up at a garage in Didsbury\Heaton Mersey. I expect it to last till the end of the season. And that's the football season, and not the Christmas season.
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I just filled up at the petrol station too. I don't know what happened I just started becoming emotional.
 
I was told my an airline pilot friend that supermarket fuel was cheaper than buying regular from a garage (BP/Esso/Shell etc) because the supermarket fuel had more detergent added, so there was actually less petrol
A few years ago I owned a BMW 520i and I filled it up at Tesco Failsworth on the way to the game. The car ran dreadfully until I filled it up at an independent and then the car went back to how it was before the Tesco fill up
I also have a friend who's in the truck leasing and servicing industry and one of his customers was having all sorts of problems with vehicles. When they switched from filling up at supermarkets to Shell, all the issues stopped
Here's an interesting article and the first one from a Google search. Read a few of the comments at the end

http://www.simplemotoring.co.uk/supermarket-vs-branded-fuels/#.WFBCc7KLS1s
 
The Pink Panther said:
I was told my an airline pilot friend that supermarket fuel was cheaper than buying regular from a garage (BP/Esso/Shell etc) because the supermarket fuel had more detergent added, so there was actually less petrol
A few years ago I owned a BMW 520i and I filled it up at Tesco Failsworth on the way to the game. The car ran dreadfully until I filled it up at an independent and then the car went back to how it was before the Tesco fill up
I also have a friend who's in the truck leasing and servicing industry and one of his customers was having all sorts of problems with vehicles. When they switched from filling up at supermarkets to Shell, all the issues stopped
Here's an interesting article and the first one from a Google search. Read a few of the comments at the end

http://www.simplemotoring.co.uk/supermarket-vs-branded-fuels/#.WFBCc7KLS1s
Click to expand...

What age was your Beemer? Cars from the 1990's had an issue with a cylinder lining made of Nikasil. The M60 from 1993 to 1996 used a Nikasil liner on the block, as did the M52 from 1995 to 1998. M52s produced after this used a steel liner. The problem occurred due to the high sulphur content that existed in low quality fuels. The sulphur reacted with the nickel lining and once damaged the alloy block was quickly worn beyond repair. BMW did not test the block with high sulphur fuel and therefore did not know about the problem until it was too late.
It was discovered that ‘cheap’ supermarket fuel contained high sulphur levels, found in particular to be present in the North-West of the UK. Cars run on high quality low sulphur fuel had no issues. BMW ended up replacing an awful lot of engine blocks under warranty as a result. That could have been your problem that day?
 
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