Thats what I dont understand, all are 2.0 at the base so unless you start hitting the turbo we should be getting like for like, then I should be way down as more horses to feed.
Must admit today after fill up I was over 44mpg over 20 miles, then pushing it it for a mile it soon dropped to 39mpg.
Bit of jackle and hyde.
May be its better to have lots of horses for a shorter time.
going to check the curves, but even in 6th at 50 mph its not in the 1300 turbo range.
I only go by the obc as a relative guide so far its always been 3 mpg higher than actual. so full to empty is when i get abs value.