Looking for some general opinions on different diesels. I tend to go Morrisons a lot and thus use their petrol for the points. However recently I've been considering getting the BP Ultimate Diesel. I'm a consultant working on projects and do a lot of mileage as a part of my job (almost 10k in last 2.5 months). After discussing with a friend who uses the BP Ultimate, he reckons it's much cleaner and so on for the car.
Do you think there is a major difference between the diesels? Money isn't really an issue as the petrol is paid for. However if people notice the same performance in the MK5 and/or a mechanic who can verify it's actually not cleaner, then I'll stick with the Morrisons.
What do you guys reckon?