Re: Moment of madness...
Altea confused with Alfa? - well it was a long, long day.
Fortunately for the Altea, Millers produce a very good diesel additive/cetane improver which does make a big difference to Morrisons "cheap" diesel, without any doubt at all. And it works out cheaper than using Shell or BP diesel premium. (Although the diesel is still as much £ per gallon, if not more than BPs ultimate petrol.....)
Diesel fuels are even more variable than petrol in terms of quality and oomph, especially on a mapped turbo.
I take no notice of what admen state or claim - you only have to look at cosmetics and pharmacuetical industry to see the bull****e they come up with, technically "correct" but really pushing the envelope in terms of credibility. I go on what i find in the real world.