MPG

[nrfitchett4]

is 20 mpg general driving normal for a base 2006 GP????

[kassel98gt]

im getting 19 city in a 98 gt so i would hope u would get better than 20

[nrfitchett4]

I'm going to replace the plugs, new oil and filter and add a k&n air filter and see what that does.
Any clue on a cheap ecm reprogram that could help?

[kassel98gt]

ive heard overkill motor sports and ZZP does a good tune, not sure if you will find one cheap though.