For more information about the Grand Cherokee L's fuel economy, visit the EPA's website. 21/18/25 mpg – 2021 Jeep Grand Cherokee L 4x4 V-8 Vehicle Type: front-engine, 4-wheel-drive, 6 Annual Fuel Cost* $3,550: Cost to Drive 25 Miles: $5.96: Cost to Fill the Tank: Tank Size *Based on 45% highway, 55% city driving, 15,000 annual miles and current fuel prices. Personalize. MSRP and tank size data provided by Edmunds.com, Inc. Range on a tank and refueling costs assume 100% of fuel in tank will be used before refueling. Close to 3,600 miles on mine, and the average for the entire time as of today is 22.4 mpg. That's from the evic. I have a pretty good mix of city, interstate, and some off road miles. I don't have a breakdown by different types of driving, and I don't calculate from the gas pump and odometer. Fuel economy of the 2018 Jeep Grand Cherokee. 1984 to present Buyer's Guide to Fuel Efficient Cars and Trucks. Estimates of gas mileage, greenhouse gas emissions, safety ratings, and air pollution ratings for new and used cars and trucks. The result: Jeep has taken the most awarded SUV in history and raised the benchmark even further, achieving fuel economy up to an estimated 30 miles per gallon (mpg) in EcoDiesel form, and improved fuel economy, drivability and overall performance across the Grand Cherokee lineup. “Grand Cherokee customers are very demanding – they want Search by make for fuel efficient new and used cars and trucks Owner MPG Estimates 2013 Jeep Grand Cherokee 2WD 6 cyl, 3.6 L, Automatic 5-spd The Jeep Cherokee is the perfect balance of fuel efficiency, size, and features for the average consumer and should definitely be a top contender when looking to purchase a Jeep. 4. Jeep Grand Cherokee. The Jeep Grand Cherokee experiences a steep dropoff when it comes to fuel economy in the Jeep lineup. It gets 19 MPG in the city and 26 MPG on 26 posts · Joined 2017. #2 · Oct 13, 2017. This setting is changed on the center (radio) screen. In the Apps: Settings > Units > Fuel Consumption > Change to US. Mine was set on custom from the factory for some reason as well. dc99 Discussion starter. 32 posts · Joined 2016. #3 · Oct 13, 2017. Annual Fuel Cost* $2,500: Cost to Drive 25 Miles: $4.13: Cost to Fill the Tank: $85: Tank Size: 24.6 gallons *Based on 45% highway, 55% city driving, 15,000 annual miles and current fuel prices. Personalize. MSRP and tank size data provided by Edmunds.com, Inc. Range on a tank and refueling costs assume 100% of fuel in tank will be used before You just need the fuel pressure gauge. I decided I'd gamble $158 on rebuilt 4 port injectors instead $40 on a fuel pressure gauge. :thumbsup: You know replacing the injectors isn't going to hurt anything and with 140k miles it's going to help a little at least. XJ TALK SHOW! A Jeep Cherokee Podcast! 6USRmMS.