Poor MPG

2006 HONDA CIVIC
95,000 MILES • 1.8L • 4 CYL • 2WD • AUTOMATIC
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CHRISGRIFFIN42975
  • MEMBER
  • 1 POST
My mpg is about 24 80% of miles on freeway i don't drive it hard never have 96,000 miles I have changed spark plugs clean filter and housing for filter new o2 upper and lower sensors cleaned MAF and MAP sensors reset the car by unplugging battery have no code had Honda do diagnostics's valve adjustment and fuel induction which they said would help done nothing changed fuel pump and filter also tires inflated 35-40 psi also checked for brake drag can't figure it out or think of anything else also coast when I can never go over 65 mpg usually more like 60.
Aug 25, 2019 at 10:21 PM
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JACOBANDNICKOLAS
  • ASE Certified Mechanic
  • 110,194 POSTS
  • ASE Certified Mechanic
Welcome to 2CarPros.

It sounds like you have done everything that can be done. I will say that with nearing 100,000, things have worn in the engine that can lead to fewer MPG. Engine compression lowers which can cause it. The timing chain has most likely stretched a bit, which can slightly change engine timing. How much of a change has the been?

Let me know.

Joe
Aug 26, 2019 at 6:36 PM
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