Join Date: Dec 2006
Location: Redditch, Worcs, UK
Re: Gt 1.9 Jtd Mpg
My GT is only 500 miles old and I travelled 250 miles yesterday. I noted that at the end of my journey (included A roads, motorways and some B roads with 3 long stops) the computer read 47.2 mpg. Also when travelling through motorway roadworks at 40mph on the SatNav, my speedo was reading 43, and when at 80mph on the SatNav, the speedo read 84mph, so I don't think the 10% error is a 'straight line' graph somehow. The car has 18" wheels but not sure if that is a factor.
The only other thing I have noticed in the short time I have had the car is that short trips from cold are reading around 39/40 mpg.