EPA Numbers For 2022 Jeep® Grand Wagoneer Models, Hit The Internet!

Will There Be A Grand Wagoneer 4x2 Model?

Robert S. Miller June 22, 2021

2022 Jeep® Grand Wagoneer Series III. (KGP Photography).

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.

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bill burke Jun 23, 2021 #1

Fuel mileage numbers in a huge SUV is of interest to story starved media people, not the buyers of these vehicles. Buyers know clearly that fuel economy is not even on the radar when shopping this SUV class, it’s all about image. The media will find a story line about anything, but this is a message that will fall on deaf ears. I believe that buyers will respond to this article with a loud and clear”who cares!!!” A story about how outrageous the luxury, the mammoth size, the impression at the valet parking station, the excess of it all, now that matters.

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H Hemi_Dart Jun 29, 2021 #2

No engine development for 11 years for the 6.4 and the 5.7 is 13 years. The styling is aweful, especially the rear quarter glass. Still No aluminum block or Direct Injection. What a joke.

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A AlexB Jun 29, 2021 #3

Inaccurate to say no development, there been refinement and updates to those engines. Hence the market disagrees with your “joke” given RAM sales.

There’s always the PHEV version.

patfromigh Jun 30, 2021 #4

I'm behind the wheel of a lot of different vehicles on a daily basis, since I work for a fleet. The fuel economy and drivability of many of the new vehicles featuring many of the advances are terrible. I find a lot of hard starting and rough running in vehicles having direct injection. They are running on the Atkinson cycle and extremely leaned out. Such performance reminds me a those Carter two-barrel carburetors with leaky floats found under the hoods of many Chrysler products during the 1970s.

I'm not surprised the fuel economy in a vehicle having a three ton curb weight and a nearly 500 hp engine to move all that bulk sucks down gasoline. Back in the day, my 1972 Chrysler T&C got 9 mpg with the 440 it had. People are seeing mid to high twenty miles per gallon in Chrysler Pacifica minivans with the Pentastar V6. The equivalent GM and Ford V6 engines with direct injection don't do as well.

Today there a those that don't buy that much gasoline for their vehicle. The have plugin hybrids. I suspect the Grand Wagoneer will acquit itself when ( if ) a P2 hybrid becomes available.

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