All the numbers here have been corrected for tires. I have a 3" lift with 33" tires. 4dr V6 4x4. As per Janster the lift and tires have been on for a while and this is not related to that.
On my drive to work today I used 6.5 gals and went 101 miles, that comes to 15.5 average mpg. Using my scanguage, At 70mph-13.3mpg-1976rpm-82.6hp. This is very unusual for my truck normally seeing 16+mpg at 70. Now at slower speeds it was normal 48mph-23mpg-1376rpm-33hp. Could some of yall chime in and let me know what yall are seeing. Thanks.
My air filter is clean, tires are at proper psi. If it were the fuel filter wouldn't I see the low mpg at all speeds?