Quote:
Originally Posted by graydonengineering
Summer AC use? Using AC could certainly drop your MPG that much. Also, do you have your tires at max? Gradual presure drop can sneek up and steal your gas too. You should also run a good injector cleaner such as Seafoam if you have not already.
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I use my AC for most of the year here in Florida.
I have run Seafoam through the tank, and I usually do it every couple of oil changes.
The tire pressure thing was mentioned to me on another site. They said I should be at "55psi rear (20psi above sidewall) and 65psi front (13psi above sidewall)". I know I'm definitely not inflated that much.
EDIT: I just checked my tire. The MAX PRESSURE is listed as 51 psi.