Hand calculated; info in signature.
You can't go 70mph?You lying sumbitches!
The only way my Jeep can crack 20 mpg or 70 miles per hour is when it’s on a tow hook.
Quit photoshopping your dash to tease me dammit!
This was round trip to Jeep invasion 23 Pigeon Forge Tn. Also this mpg avg INCLUDES 4.5 hours up the Hurricane Creek Trail as well as running up and down the strip and walking speeds for hours. I do run full synthetic Motul engine oil and 3 ounces of diesel extreme every other tank. It seems to accelerate just as quick as stock.
I average 27.2 @65-70 mph on interstate.
I average 27-30 on highways back roads with speeds below 60 mph.
This is the best part.
37x13.5 BFG Ko2s on 18" Fuel Covert wheels.
Stock gears, no tune.
I did have 35" BFG ko2s and milage was 1-1/2 to 2 mpg worse.... I know it's crazy but I think the 37s hit a sweet spot on the Diesel torque curve. It pulls 8th gear out no problem.