- Thu Nov 14, 2013 12:45 pm
#338844
I would like some ideas on how to improve and fix my mpg. I was getting 35-40mpg before but for the past 3 months, it has dropped down to 28-33mpg... (Not running the a/c) I have changed the spark plugs, ignition wires, and fixed the evap vaccum line. Nothing helped. I have changed oil frequently too. Other ideas I have would be fuel filter? Injectors? I have a brand new air intake filter. I did go from stock oem tires 13's to 225/50/r15s, but i doubt the gas mpg would get that much worse. tire pressure set to around 33 psi. I am really not trying to guess and just keep throwing parts at it...
1992 Honda Civic SIR-S