06 Silverado poor MPG

Asked by Lman57 Aug 18, 2015 at 06:41 PM about the 2006 Chevrolet Silverado 1500 2LT Crew Cab RWD

Question type: Maintenance & Repair

My 06 Chevy Silverado 5.3L is running great but my MPG has dropped from 16MPG to 10MPG. city. I have 94K miles never had a tuneup this gas MPG dropped suddenly anyone have a idea on what I should do?

8 Answers
64,500

firebird338 answered 8 years ago

Add some Lucas Fuel Injector Cleaner to gas tank. Noticed a big difference in my mileage when I used it.

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70,075

Kelly answered 8 years ago

and put a better air filter in it....AND check tall pipe back pressure!!

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220,875

Rowefast answered 8 years ago

How about getting a tune-up since it has never been done?

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