Join Date: Aug 2005
Nominated 2 Times in 3 Posts
TOTW/F/M Award(s): 3
Thanked 68 Times in 26 Posts
I don't think there is any fuel that you can add to a car for an extra few pence a Ltr that willl show drastic changes to the cars performance/mpg, Some I know have said their car seems to run smoother on the premium fuels and when they have changed back to the regular fuel car ran lumpy ?
Modern cars can take a while to adjust to the difference in fuels