Yesterday, several sites reported that U.S. Environmental Protection Agency (EPA) had released the first fuel economy numbers on the all-new 2022 Jeep® Grand Wagoneer (WS). While the website states that the numbers are for the Grand Wagoneer and not the standard Wagoneer, it means numbers reflect the new premium SUV’s 6.4-liter HEMI V8 found in vehicles like the Durango SRT392 and Grand Cherokee SRT.
The EPA released numbers for both Grand Wagoneer models with two-wheel-drive (4×2) and four-wheel-drive (4×4) configurations. But that is where the confusion starts, as all Grand Wagoneer models come standard with 4×4. The lower-level Wagoneer comes in 4×2 options for its Series I and Series II trim levels but is powered by the 5.7-liter HEMI V8 with an eTorque mild-hybrid system. So we can’t rely on these numbers just yet.
Nevertheless, the fuel economy rating for the Grand Wagoneer 4×4 is 13 MPG City / 18 MPG Highway / 15 MPG Combined. The numbers for the 4×2 are the same with the exception of 1 MPG better on the Highway. This ultimately means that the new ultra-premium Grand Wagoneer sits at the bottom of its class for fuel economy.
The 6.4-liter HEMI V8 delivers 471 horsepower and 455 lb.-ft. of torque, under the hood of the Grand Wagoneer. Engineered to deliver class-leading V8 performance and best-in-class towing capability, the 6.4-liter HEMI V8 receives some unique adjustments to set new benchmarks for both power and performance. These include a unique exhaust manifold, intake manifold, and moving the airbox to the right side of the engine bay.
The Grand Wagoneer’s 6.4-liter HEMI V8 features Fuel Saver Technology cylinder deactivation and variable camshaft timing and is paired to an 8-speed TorqueFlite 8HP75 automatic transmission. The Grand Wagoneer comes standard with a 3.92 rear axle ratio, which may be the biggest reason behind the sub-20 MPG rating, but does allow the Grand Wagoneer to run a 0 to 60 MPH in 6-seconds.
Looking at Grand Wagoneer’s closest competition, the 2021 Cadillac Escalade with its 6.2-liter V8 and 4×4 gets 1 MPG more combined. The Lincoln Navigator is powered by a twin-turbocharged 3.5-liter V6 gets an additional 1 MPG combined over the Escalade. The Escalade does feature an optional 3.0-liter Duramax I6 diesel option which gets an amazing 22 MPG Highway rating, sorry EcoDiesel fans, no such option will be available on the Grand Wagoneer.
According to inside sources close to MoparInsiders.com, are saying that Jeep will unveil a plug-in hybrid (PHEV) variant of its new Grand Wagoneer later this year. The new PHEV model will feature the all-new turbocharged 3.0-liter GME-T6 inline-six-cylinder, the newest addition to the Global Medium Engine (GME) family. This model should help boost the Grand Wagoneer’s fuel economy capability and offer an electric-only range for Jeep’s biggest SUV.
Hopefully, we can find out more details about these Grand Wagoneer 4×2 numbers and see if the brand will offer a 4×2 model.
So what do you think of the new 2022 Jeep Grand Wagoneer Series III? Let us know in the comments below, or in our dedicated WagoneerForums.org owner’s forums.