Quick question guys its an 04 silverado 4x4 extended cab with 31,500 miles. my gas milage is steadily decreasing. Im down to 12 mpg wtf is going on? The truck is 100 percent stock. I change the air filter, I always use royal purple motor oil truck runs great no problems except for the past 6 months the gas milage has been going down. what do you guys think is going on.

 

i cant remember if your truck has a fuel filter... if it does you may want to change it

 

Yep Filter is in tank, fun fun..

 

Change the Fuel filter every 30,000 miles...that was what a friend mechanic said to me as he changed out the old stuff and put the new ones in after we bought the truck.

 

k. thanks ill try that. how about new plugs would that help.

 

If I'm not mistaken, the fuel filter should be on the inside of the frame underneath the bed.... I've got a 99 Silverado that I just changed mine on, and it was on the drivers side...as long as it is a Gas engine...

 

The 03+ guys arent as lucky as we are. In 03 they started putting them in-tank.

What gas are you running? octane rating / gas station?

 

have fun trying to get that bitch off... mine is ******* seized on there

 

As is mine. Could only get one side off, the other side was soo seized on I tightened the back side up again and left it.

 

PB blaster is the **** for seized parts guys