roel wrote:

I think using quality brand fuel is as important.
I didn't feel real differences with my 300TDI camel disco but I could see differences in MPG. Not really in tank to to differences as they changed widely depending on driving style and how full I put it that time.
But I kept track off my fuel consumption and used shell most off the time till a Tango station came and started using that as it was cheaper. I used that for about half a year and carefully looked at my fuel consumption over that period and I noticed that the price difference was about the same amount that I lost on MPG so I changed back to Shell again.

With my current Discovery a G4 D3 with a nice 4.4 ltr V8 I really need to use good branded fuels. As the MPG go down on cheap fuel. I run it on the normal euro petrol I didn't see a benifit in the Shell Power or the BP ultimate fuel they didn't bring a MPG increase. But cheap full brings the MPG down and like a few weeks ago can even cause rough running.
So I am a convinced quality brand fuel driver, I use mainly Shell and BP mainly because they are close to home and I know that they are good. so I use them in other places too. In Germany BP is sold under the brand name Aral.