Differnce in diesel supplies - CM
I am having some power delivery problems in my DT and took it down to the garage today to see if the MAF sensor was playing up. They did a diagnostic check and said that all seemed ok. They also asked whether I always filled up at the same place because from the mechanic's past experiences he found that he had problems (with petrol) from the same company that I use.

Has anyone experienced worse performance from certain suppliers than others? (I know that improvements from different petrol suppliers has been recently discussed)
Differnce in diesel supplies - terryb
My last XM, when towing absolutely hated BP diesel. The engine management light came on within a few miles of iflling up. Anything else (including French supermarket stuff) was fine.

The independent Cit specialist I used couldn't shed any light on the problem so I just avoided BP diesel. No problem!

Terry
Differnce in diesel supplies - Ian Cook
At about this time of the year they start supplying diesel with winter anti waxing additives, and this stuff is about 1.5% non combustible. It will have a small effect on power and fuel consumption.

I don't know if there's much difference bewteen diesel brands, but I avoid Tesco because it seems to froth more.

Ian Cook