QUOTE(Matus @ Jan 22 2008, 11:28 AM)

what is the quality of the supermarket diesel? Do you have any government tests there?
Because one thing is increased consumption because of ****ty diesel, but what about injectors? Injectors are very sensitive on the fuel quality and they are very expensive to change.
Matus - that has alays been my fear. Especially as the 5th injector clogging issue is a big one, so I really should be safe.
However, there is no evidence at all that the fuel is of any inferior quality, other than an incident a few months back where excess silicone (I think) was found in some supermarket fuels which caused the Oxy sensors to die on thousands of petrol cars over a few days. Diesels were all OK as they can may be run on cooking oil!!
A white unmarked tanker pulled in to our local suprmarkt station last week as I filled up - the tanker was all white, but there was one small BP sign on the tractor unit.
I did read something somewhere which stated that Supermarkets will buy the cheapest fuel possible, but I don't know of any tests.