'Donboon' thanks for the advice, it did get me thinking and I have just been out to run a few tests. First, I have checked the tyres, which are all new and the standard Michelin 235/70 R16, also, the problem was exactly the same with the old set. Second, I did a test drive alondside my...

My recently purchased 1996 Auto Disco (3.9i) indicates 2700 rpm at 120Kph/75Mph. I understand it should read 2500rpm at this speed. I am located in Saudi Arabia and seem to remember having the same problem on my last Disco (1995 model) after the dealer carried out the 'Gulf Cooling Mod'. This...