Guys i just worked out roughly what mpg my cdti vectra is doin on motorway runs and she does around 420 miles on £50 of fuel which works out around 44 mpg.
Tbh, i expected better than that as i took it pretty easy and used cruise control most of the way doin 70mpg. The car has had some mods done by prevoius owner included a re mapp/ pipercross panel filter/ the airbox mod and the egr valve blocked off so im not sure if that would effect the results to much as i was cruising most of the time..
Is there anything or things i can do to increase the mpg or is this around the right result for the car with the mods ect ??
Cheers rich