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**Chris** · 28-03-2011, 18:51

I never said he was a bad mechanic.

I said, unless he has performed experiments in controlled conditions, he is not in possession of the information needed to state that supermarket fuel has caused the damage he has observed.

You say they 'see the damage done to high pressure fuel pumps and turbos by supermarket fuels on a daily basis' - not correct. They see damage. They do not see what caused the damage, unless they have exhaustive data over an extended period, for example two pumps side by side, one known to have been run exclusively on supermarket fuels (or even mostly), and one exclusively run on branded fuels.

28-03-2011, 18:51	#31
Chris Trollsplatter Cable Forum Team Join Date: Jun 2003 Location: North of Watford Services: Humane elimination of all common Internet pests Posts: 36,987	Re: Is supermarket fuel good enough? I never said he was a bad mechanic. I said, unless he has performed experiments in controlled conditions, he is not in possession of the information needed to state that supermarket fuel has caused the damage he has observed. You say they 'see the damage done to high pressure fuel pumps and turbos by supermarket fuels on a daily basis' - not correct. They see damage. They do not see what caused the damage, unless they have exhaustive data over an extended period, for example two pumps side by side, one known to have been run exclusively on supermarket fuels (or even mostly), and one exclusively run on branded fuels.