adjat84th
Veteran Member
I ran my first ten tanks and compared the actual vs MFD to come up with ~8% difference. The value you adjust in VCDS changes from 100% to 108% (or whatever your calculated difference is). Mine is now consistently within +/- 1mpg every time.Cost? Other info to help this really uninformed guy. Would be nice to have it "spot" on.
Thx