I can run 70mph and be well under 2k rpms and I can't ever touch the mileage you guys seem to get.

 

I recently made a trip to Junction, TX and back. The highway was pretty darned flat. I was driving my truck (in my signature). I drove 60 mph all the way. I pissed off alot of drivers b/c the speed limit is 80 on that stretch. (Im retired, so I dont have to be anywhere at any particular tme) My lie'o'meter was reading 25.2 mpg, but hand calculated came up with 22 mpg. That remained pretty consistent throughout. I was really happy with that. I think having my tire pressure at max, 80 psi, all synthetic fluids, new filters, and extended front air dam really helped.

 

You have a cummins, you don't count.

 

Lmao. I'm fairly sure that I'm pulling better than my calculated 17. My gearing/tires aren't matched perfect so I have about a 10% difference on speed (cruise control set with the needle dead on 60mph, a CHP buddy clocked me at 66mph) so unless I messed up my math somewhere, the truck is actually going 10% farther than the trip-meter says. So a 550 mile fill-up is actually a 600 fill-up and the ~17mpg is really closer to 18 or 19. Soon I'm going to find out EXACTLY how far off it is and do a Google Maps route with my wife's car (to see how close the mileage is comparing her trip-meter and the prospective mileage), then do the same trip in my truck to see just how much of a difference I have.

 

Get the damn thing recalibrated! hahaha

Another glorious thing AE can do is recalibrate speedo's.... Mine is dead nuts. Verify it with a GPS.

 

I will Mike, just hasn't hit the top of the priority list yet. Life has a tendency of getting in the way.

 

My bad!