Okay, I'm not complaining about this at all.
But for the life of me I can't figure out why this happened. I've not changed anything on the truck since about a month ago at which time I did birfs and had diffs/transfer changed all with full synthetic lubes. Wires recently replaced with OEM; new plugs about three/four months ago were checked and regapped (they were off after dealer put them in--can't trust anyone these days!). Was getting about 14-15 at that time.
Drove from NJ to Shenandoah Valley last weekend, and got 17.25 mpg (nothing in tow, just me and the missus with some gear; average speed 70mph 80% highway driving--note that this is with the SC too). I've never had this kind of milage since new and initially thought it was a fluke or bad measurement. But on the return trip got pretty much the same. I was careful about measuring too becuase I didn't believe it.
So I need to know the secret of my success. I don't want to do anything to the truck now until I know why this happened for fear I'll never get it back. Has this happend to anyone else--and if so, do you know why?
Tom
But for the life of me I can't figure out why this happened. I've not changed anything on the truck since about a month ago at which time I did birfs and had diffs/transfer changed all with full synthetic lubes. Wires recently replaced with OEM; new plugs about three/four months ago were checked and regapped (they were off after dealer put them in--can't trust anyone these days!). Was getting about 14-15 at that time.
Drove from NJ to Shenandoah Valley last weekend, and got 17.25 mpg (nothing in tow, just me and the missus with some gear; average speed 70mph 80% highway driving--note that this is with the SC too). I've never had this kind of milage since new and initially thought it was a fluke or bad measurement. But on the return trip got pretty much the same. I was careful about measuring too becuase I didn't believe it.
So I need to know the secret of my success. I don't want to do anything to the truck now until I know why this happened for fear I'll never get it back. Has this happend to anyone else--and if so, do you know why?
Tom