Originally Posted by
jayc3169
The milage is 148650 as of this morning, 4WD, Automatic trans, stock gears, I don't know my tire size off hand but they are slightly bigger, I have an AEM Brute Force air intake (3in), 3in turbo back exhaust (Bully Dog), and a Bully Dog Triple Dog Downloader. I'm using Rosella synthetic oil... I got my calculation from the electronic gauge. The trip was a 18 mile trip from New Bern, NC to Cherry Point, NC. With the A/C on I average 21.3. A/C off windows down I got 22.1. Is this really that hard to believe? I change filters every 3,000 miles and oil and filter at another 2,000 miles.
No it's not hard to believe after you said this calculated by the electronic gauge. In reality that number drops 3-4 mpg. My electronic did show 18 mpg in city, while hand calculated was at 14 + . So don't trust in that.