Hi All

I have had my 2.0TDI for nearly two years now, and up to this point have run it only on BP ULSD (50ppm sulfur and the now available 10ppm sulfur).

Yesterday my local BP had run out of diesel, so i fueled up with Shell Diesel and the difference in performance has been remarkable. The car picks up a hell of a lot faster, and there has been an improvement in the immediate avg consumption... even with a heavy right foot.

I was always under the impression that BP offered the best product (meets DIN EN 590 standard, as in the vehicle handbook), but now i am not so sure (??).

As a point to consider, both service stations are relatively new - and with more than one diesel bowser. So it is unlikely that the BP reservoir is any more fouled than the Shell reservoir (yes?).

Interestingly enough the BP ULSD datasheet claims a higher cetane rating (typical 51), than the Shell datasheet (49).

http://www.bp.com/sectiongenericarti...tentId=7027516

http://www.shell.com/static/au-en/do...ine_50_tds.pdf