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Excellium v Ultimate diesel? - GT
I notice my local Total station now has a pump for Excellium Diesel, which I assume is meant to be the equivalent of BP's Ultimate Diesel. Does anyone know whether it's the same fuel, or different - in which case, which one is best for mileage, performance, extending engine life, etc... (oh yes - and the environment, how could I forget). I run a 2.5 V6 TDi Passat, and having run on ordinary diesel and BP Ultimate, I can't say I've noticed any difference other than in my pocket, though I may be churning out less noxious fumes if that's what BP would claim.
Excellium v Ultimate diesel? - Hamsafar
"I run a 2.5 V6 TDi "
So do I.
I can't tell the difference in BP's or Total's diesels (the latter I have only sampled in France).
I can with Shell Extra which I always use because it's the cheapest around here. If I'm caught short and use Sainsbury's, I think to myself - the car sounds a bit rough.
No difference in performance or mpg though. My mpg is terrible anyway.
Excellium v Ultimate diesel? - Bill Payer
I have a straight 5 2.7 diesel (Merc) and I can't tell any difference either.

I do use Sainsbury's City Diesel quite a bit and my car runs just fine on it, producing some of its best MPG figures: See: www.honestjohn.co.uk/motoring_answers/index.htm?id...7