why is the millage on my 5.7 hemi going down

Asked by Aug 17, 2014 at 06:56 PM about the 2006 Dodge Durango SLT

Question type: General

I have 109,000 miles on my durango and the millage is getting worse on a vehicle that already gets poor millage. I recently replaced the EGR valve and the plugs. any ideas?

5 Answers

111,145

Air filter ok? Driving over about 62 mph really hurts my mileage in my 2007 hemi 1500. I try to stay off interstate or if I have to run it try to keep speed down. Other drivers might not like it to much but if I run 70+ you can almost watch the gas needle drop.

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2 of 2 people found this helpful.

thanks mark, yes I have a k&n filter,could need cleaning. I typically was getting 19 to 22 miles/gal on the freeway at 65 mph. recently I can barely get 18 and the in town millage is down around 2 miles/gal also.based on what the computer is telling me. the only thing I am noticing is the exhaust is getting louder probably a result of the baffles on the inside of the muffler and resonator rotting out.

111,145

Cleaning the air filter will probably help some.

1 of 1 people found this helpful.

Common mistake..don't worry. We are not Mark That's to click if you think the post is helpful

1 of 1 people found this helpful.

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