Originally Posted by David Jones
I've done 1200 miles with my 2016 157" wb 2.7EB SuperCrew (3.31 gear) since late January. The first two tanks came in at 21.5 on the lie-o-meter, with the current tank showing 20.9.
Okay, I generally get the idea that paying a little more for better quality gas AND slightly lower highway speeds will apparently help improve mpg's. What about higher octane gas [Premium vs. Regular]? Does that help overall mpg's? For example, would Shell's V-tech premium gas work a little better in a 2.7 EB engine than regular? AND, does higher octane gas have any drawbacks or will it potentially create maintenance issue with my engine?
Finally, does anyone occasionally use Lucas Oil Injector Cleaner or Marvel Mystery oil additives to their gas to help bump up mpg's? Any pro or con issues?
I am STILL mystified how the other guy from Texas around the San Antonio area got the mpg's he posted not too long ago! I made the round trip drive (300 miles one way) between Dallas and San Antonio and did not come close to the mpg's he says he got!
My regrets if any of these questions have been asked before. Thanks for your patience and any feedback about any of this.