2012 Jeep Wrangler Sport: Fuel Economy Update for March
April 9, 2013
By now our 2012 Jeep Wrangler Sport's fuel economy has become fairly stable. Some 31,000 miles will do that to MPG data.
It's fuel economy hasn't quite lived up to EPA estimates, but tall, wide and sticky 285/70R17 BFGoodrich Mud Terrain T/A KM2 tires have not done on-road gearing, inertia or rolling resistance any favors for the last 25,000 miles. And then there's the 3-inch lift kit and the extra aerodynamic turbulence and increased frontal area it brings to the party.
March was dominated by two off-road trips, one to northeastern Arizona and another to Moab, Utah. Such trips are an odd combination of long stretches of highway cruising followed by short bouts of low-speed crawling in low range. These trips and a smidge of commuting in between added 3,822 miles to the Jeep's odometer at an average fuel consumption of 16.5 mpg.
I guess off road use isn't all that bad for the average if you drive hundreds of freeway miles to get there.
Dan Edmunds, Director of Vehicle Testing @ 31,415 miles
Average Lifetime MPG: 16.3 (17.3 before mods / 16.0 after)
EPA MPG Rating (City/Highway/Combined): 17/21/18
Best Fill MPG: 21.0 (19.0 after mods)
Worst Fill MPG: 11.4 (low-range off-roading, before and after mods)
Best Range: 315 miles (305 after mods)
Current Odometer: 31,415 miles