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Just How Thirsty Is The 2021 Jeep® Wrangler Unlimited Rubicon 392?

EPA Releases Official Numbers On The New HEMI-Powered Wrangler...

When the Jeep® brand unveiled its new 2021 Jeep Wrangler Unlimited Rubicon 392 in November, it answered the pleas from Wrangler fans to put more power under the hood of the iconic off-roader. To help Jeep create the ultimate factory performance Wrangler, engineers installed the first V8 in the vehicle’s history in 40 years – the 6.4-liter (392 cubic-inch) SRT HEMI V8.

2021 Jeep® Wrangler Unlimited Rubicon 392 with Jeep Performance Parts. (Jeep).

Producing 470 horsepower and 470 lb.-ft. of torque in its production form, the 392 HEMI-equipped Wrangler is mated to an 8-speed 8HP75 TorqueFlite automatic. The combo is capable of propelling the four-door off-roader to a 0 to 60 mph time of 4.5 seconds and a 1/4-mile pass in 13 seconds flat. Pretty darn impressive for most SUVs, let alone a Wrangler.

The Wrangler Unlimited Rubicon 392 is the most recent addition to the revised 2021 Wrangler lineup. The 392 HEMI joins the new plug-in hybrid powertrain of the new Wrangler Unlimited 4xe lineup, the potent and efficient 3.0-liter EcoDiesel V6, 2.0-liter turbocharged GME-T4 (Global Medium Engine – Turbo 4-Cylinder) inline-four-cylinder, and the award-winning 3.6-liter Pentastar V6 with eTorque mild-hybrid system. The five powertrains allow the Wrangler to offer the most diverse powertrain lineup in the Stellantis portfolio.

2021 Jeep® Wrangler Unlimited Rubicon 392 6.4-liter HEMI V8. (Jeep).

Thanks to a new posting from the U.S. Environmental Protection Agency (EPA), we are finally getting to see the official fuel economy numbers for the new 2021 Jeep Wrangler Unlimited Rubicon 392. With an official rating of 13 MPG City, 17 MPG Highway, and 14 MPG Combined, how does the 392 HEMI-powered Rubicon do against the rest of the Wrangler lineup?

2021 Jeep® Wrangler Fuel Economy Numbers
Model: Engine: Transmission: MPG City: MPG Combined: MPG Highway:
Wrangler Unlimited EcoDiesel 4×4 3.0-liter EcoDiesel V6 with ESS 8HP75 8-Speed Automatic 22 MPG 25 MPG 29 MPG
Wrangler 4×4 2.0-liter GME-T4 Turbocharged Four-Cylinder with ESS 850RE 8-Speed Automatic 22 MPG 23 MPG 24 MPG
Wrangler Unlimited Rubicon EcoDiesel 4×4 3.0-liter EcoDiesel V6 with ESS 8HP75 8-Speed Automatic 21 MPG 23 MPG 24 MPG
Wrangler Unlimited 4×4 2.0-liter GME-T4 Turbocharged Four-Cylinder with ESS 850RE 8-Speed Automatic 21 MPG 22 MPG 24 MPG
Wrangler 4×4 3.6-liter Pentastar V6 with eTorque 850RE 8-Speed Automatic 20 MPG 21 MPG 24 MPG
Wrangler Unlimited 4×4 3.6-liter Pentastar V6 with eTorque 850RE 8-Speed Automatic 19 MPG 21 MPG 24 MPG
Wrangler 4×4 3.6-liter Pentastar V6 with ESS D478 6-Speed Manual 17 MPG 20 MPG 25 MPG
Wrangler Unlimited 4×4 3.6-liter Pentastar V6 with ESS D478 6-Speed Manual 17 MPG 19 MPG 23 MPG
Wrangler Unlimited Rubicon 392 4×4 6.4-liter SRT HEMI V8 with Fuel Saver 8HP75 8-Speed Automatic 13 MPG 14 MPG 17 MPG
2021 Jeep® Wrangler Unlimited Rubicon 392 with Jeep Performance Parts. (Jeep).

While the new Wrangler Unlimited Rubicon 392 numbers have been posted, the numbers on the new Wrangler Unlimited 4xe have yet to be released. Jeep says that the new 4xe models are capable of an estimated 50 miles per gallon equivalent (MPGe) and approximately 50 kilometers (31 miles) of zero-emission pure electric range.

The 2021 Jeep Wrangler Unlimited Rubicon 392 goes on sale in the first quarter of 2021.

Jared B

Jared founded MoparInsiders and is a 36-year-old automotive enthusiast from Vancouver, British Columbia. He took an interest in cars at a very young age and has been interested in them ever since. His hobbies include photography, videography, drag racing, and auto detailing. He currently owns and drives a 2021 Dodge Challenger SRT Hellcat Redeye and rides a 2017 Kawasaki Ninja 650.

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Just How Thirsty Is The 2021 Jeep® Wrangler Unlimited Rubicon 392?​

EPA Releases Official Numbers On The New HEMI-Powered Wrangler...​

When the Jeep® brand unveiled its new 2021 Jeep Wrangler Unlimited Rubicon 392 in November, it answered the pleas from Wrangler fans to put more power under the hood of the iconic off-roader. To help Jeep create the ultimate factory performance Wrangler, engineers installed the first V8 in the vehicle’s history in 40 years – … (read full article...)

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