Diesel Extra Arrived.Any Verdicts? - misterp
Shell have now got Diesel Extra aat my local station(Midlands).
Put first 1/2 tank top up today. Just wondering if anyone who has had access to it a bit longer has noticed any difference with performance/Mpg??
Diesel Extra Arrived.Any Verdicts? - AlanGowdy
I\'ve used it a few times - can\'t say I\'ve noticed it being any better than the supermarket stuff. Perhaps over a longer period it might keep the injectors etc. cleaner because of its additives.

My last car was petrol fuelled and I found that the supermarket stuff gave better mpg than the posh branded petrol. This was the case each time I did the calculations (and I did them frequently!).
Diesel Extra Arrived.Any Verdicts? - Altea Ego
Have used the BP version. Ultimate diesel? car had more power, much better low rev tractability and smoothness, but not a jot of diffrence in MPG tho so at nearly 6p a litre dearer it got the chop
Diesel Extra Arrived.Any Verdicts? - LongDriver {P}
I agree BP Ultmiate Diesel did give a noticeable performance improvement, but Shell Diesel Extra appears to be no different to anything else.

Except Morrissons supermarket diesel....it's like driving with the brakes on....