02 Ford Escape XLT 3.0 4WD No Boundaries - 116,000. NB roof rack, window rainguards, light wing with offroad lights, bug deflector, stock sized Goodyear Silent Armor tires on OEM 16" aluminum wheels. Stock gearing and driveline. Fresh trans fluid, oil, diff oil, transfer case fluid, air filter.
94 LeSabre Custom - 65,000. 100% stock on Pirelli touring tires. 3800 Series 1 V6.
Not tracked, but old calculations is 25 Hwy.
87 Comanche base 2.5 2wd SB - 183,000. 3" lift. 4sp 2wd. 2.5 liter inline 4. D35 axle. No A/C. Front bug deflector. Canopy. Studded 235/75R15 on OEM aluminum 10-hole wheels and 2 bags of sand in bed from Nov 1 to Apr 1, touring 235/70R16 on Grand Cherokee Silverstar wheels and no sand all other times. Stock gearing. Fresh oil change, air filter, fuel filter, synthetic gear oil, diff oil.
86 Comanche X 2.8 4wd LB - n/a. Rolling shell sans engine.
Not Tracked
By not listing things which cause wind resistance or aerodynamic drag (lights, lifts, etc.) or other variables (canopy, high or low rolling resistance tires, heavy or lightweight tires/wheels, old fluids, etc.), just asking engine/trans/gearing isn't going to yield accurate fuel economy results, and in turn the results can vary wildly from one similar vehicle to the next.