In my last car a Range Rover Sport TDV8 I ran the car on Ultimate diesel virtually all the time. On the odd occasion when I didn't I really noticed a difference when I next filled with Ultimate in that it ran much smoother and was quicker.
So what do you use and why
What spec fuel does Audi say should be used
Anyone tried with both types of fuel to see if there is a difference
I suppose when my old car weighed 2 1/2 tons any advantage was maybe worth it and especially as I wasn't paying the bill for it.
But when the Q5 arrives I will be paying so I guess I'll just have to stick to the normal stuff and be happy. Perhaps just stick the odd tank of Ultimate in and give it a clean out. Some people in the LR world are putting 2 stroke oil in with the diesel. I never tried that.
I'm not sure about the supermarket stuff though, especially after that water in the fuel fiasco...............I just can't understand why if all fuel is the same they can sell it cheaper than anyone else. The principle "Is it cheap for a reason" stops me using it for now.