Fuel Consumption - Economy Combined: 17 MPG 14.1 L/100 km 20 MPG UK: Is 2015 Jeep Grand Cherokee (WK2) 5.7 V8 HEMI Overland All Wheel Drive (AWD)? Yes, the 2015 Highway MPG: 27. highway. 4.5 gals/ 100 miles. 2021 Jeep Cherokee 4WD Active Drive II 4 cyl, 2.0 L, Automatic 9-spd. Regular Gasoline. Not Available. About $35. Makes changing a piece of cake. '08 WK Limited, 5.7L HEMI, Quadra-Trac II, Bright Silver Metallic, Class IV Hitch, Michelin LTX M/S tires, Billet Technology oil catch can, Fumoto oil drain valve. Reply. frankly no need for 89. every 5.7 hemi says 89 is recommended for optimum fuel economy and power. owners manual clearly states 87 is fine to use. 1998 XJ 2DR 4.0L 5spd / 2017 GC SRT.sold / 2022 wrangler.sold / 2023 GCL SR Hemi. The base 3.6-liter V6 (295 horsepower, 260 pound-feet) pairs with a polished eight-speed automatic and is adequate for most needs. Its EPA estimates of 18/26/21 mpg city/highway/combined (17/25/21 We can help you calculate and track your fuel economy. MPG Estimates from Others; 2012 Jeep Grand Cherokee 2WD 6 cyl, 3.6 L, Automatic 5-spd The Grand Cherokee is available with five engines: a 3.7L gasoline V6, a 4.7L flex-fuel V8, a 3.0L V6 turbo-diesel, a 5.7L HEMI V8 and a 6.1L HEMI V8. 3. Fuel economy ranges anywhere from 18/23 Choose a Jeep Grand Cherokee 2017 version from the list below to get information about engine specs, horsepower, CO2 emissions, fuel consumption, dimensions, tires size, weight and many other facts. Notice also the plus sign to access the comparator tool where you can compare up to 3 cars at once side by side. With a longer stroke, the 6.4 engine will be able to provide you better power when compared to 5.7 hemi. But then again, in terms of engine displacement, the hemi 5.7 vs 6.4 fuel economy also gets involved. Here also you get better results with the 392 cubic inches engine displacement offered 6.4 hemi. K6GKALK.