Hey guys, i just joined this here and was wondering if someone could give me some help. I had an Edge tunner on my truck and 35 in tires and was getting about 13 mpg average. I removed the tuner and put 33 in tires on there and was getting 15 to 16 mpg average. Now for some reason i am only getting 12.3 mpg average. What the hell is up? Can anyone help?

 

When did you change the fuel filter last and oil change? I have seen that as the problem for some milage drops before. Also is it hotter now and you are using the A/C more than normal?

That's just my two cents on this problem

 

I change the oil every 3,000 miles and this all started before it got hot. I haven't messed with the fuel filter.

 

Maybe a bad injector,Or the earths gravitational pull is getting stronger!Aww just put a cummins in her and drive the hell out of it!

 

HA HA wish i could. I am going to get a SCT programer and a EGR delete kit and what that will do for it. I did just replace the ICP senser, could that have anything to do with it? Also i have an oil leak comming from the back of the motor. The funny thing about the leak is when i start it up and drive about 5 mins and shut it off it will leak about 1/4 to 1/2 a quart but when i drive for a while and get it nice and warm and shut it off it will only drip about 5 or 10 little drops. What do you got for that?