I just changed fuel filters on my friends 2000 camaro. When I removed it, of course it still had gas in it , but it came out gray and murky. I dumped it out of the intake hole. I added a can of techron fuel cleaner in the tank and it seems to drive ok. Also she has been getting about 200 miles to the tank on a bone stock motor.
Any ideas?

 

a tuneup should definately help with the mileage
not suer why the gas would be gray?

 

when the fuel filter gets dirty the dirt make it grey... what kinda gas does he use i changed mine a 60K miles and it was crystal clear...