Gas Milage

calstang99

New Member
Sep 19, 2005
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the gas mileage in my 99 v6 5 speed has taken a nose dive in the past month or so. It has dropped from ~20 to ~13mpg. the spark plugs look fine, i just put on new tires and and K&N air filter in. Nothing seems to change the mpg.

the next thing i am going to replace is the fuel filter and check the timing. however the car is not running rough, it just likes to suck down gas. (and no, i don't drive it extremely hard)

the mpg seemed to drop significantly once i got my clutch replaced and has never recovered.

Does anybody have any ideas? Please help.