As a manufacturer that primarily focuses on pickup trucks and SUVs, GMC’s vehicles aren’t typically recognized for their fuel efficiency. But while a number of SUV options on the market outcompete the fuel economy on GMC’s most fuel-efficient vehicles, some of its pickup trucks rank higher among the competition.

So, what do those gas mileage numbers actually look like? Here to give you the rundown is

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Which GMC vehicles have the best gas mileage?

On GMC’s 2022 lineup, the vehicles with the best gas mileage, based on Environmental Protection Agency (EPA) estimates, are:

2022 GMC Terrain FWD: 27 combined city/highway mpg

2022 GMC Terrain AWD: 26 combined city/highway mpg

2022 GMC Sierra 2WD: 26 combined city/highway mpg

2022 GMC Acadia FWD: 25 combined city/highway mpg

But there are plenty more details we can dive into. Let’s see how the efficiencies of various GMCs’ fuel economies compare—among each other and the competition.

The most fuel-efficient GMC SUVs

As you can see above, if you’re looking for a new GMC SUV with the best fuel economy, the GMC Terrain is going to be your best bet. The FWD option gets an average 25 mpg for city driving and 30 mpg on the highway—which gives it a combined 27 mpg.

The 2022 AWD Terrain differs only slightly: it gets 25 mpg city and 28 mpg highway for a combined average of 26 mpg.

Tied for second place as GMC’s most fuel-efficient 2022 vehicle is the 2WD GMC Sierra with the six-cylinder, 3.0L engine and automatic 10-speed transmission. It gets 23 mpg city and 30 mpg highway for a combined 26 mpg.

If you’re looking for a four-wheel drive truck, the 4WD GMC Sierra with that same engine and transmission doesn’t fall too short of that gas mileage. It gets 22 mpg city, 26 mpg highway, and a combined 24 mpg.

Finally, there’s the GMC Acadia. Different engine options will have different fuel economies, but the one that ranks highest is the four-cylinder, 2.0-liter engine paired with an automatic nine-speed transmission. It gets 22 mpg city and 29 mpg highway for a combined 25 mpg.

All this considered, these fuel economies still trail behind the fuel efficiency ratings of the most competitive fuel-efficient SUVs on the market, which include the 2022 Toyota Corolla Cross, which gets a combined 32 mpg, or the 2022 Honda CR-V hybrid, which gets 38 combined mpg.

If you’re looking for something a little more spacious than the Terrain or the Acadia on the GMC lineup, there’s also the 2022 GMC Yukon, but like the other vehicles on this list, its efficiency varies based on its configurations, ranging from a combined 16 to 23 mpg. The most fuel-efficient Yukon is the diesel-powered GMC Yukon XL 2WD with a 3-liter, six-cylinder engine and automatic 10-speed transmission—it gets 21 mpg city and 27 mpg highway.

MORE:

Is a GMC Hybrid worth it?

Most fuel-efficient GMC trucks

While the fuel efficiency of GMC’s SUVs could stand to be more competitive, some 2022 GMC trucks rank among the most fuel-efficient gasoline-powered pickup trucks available—but there are a few options that outcompete it.

Topping GMC’s list in the 2022 pickup truck category is the diesel-powered GMC Sierra 1500 2WD equipped with the 3-liter six-cylinder engine and an automatic 10-speed transmission. It gets 23 mpg city, 30 mpg highway, and a combined 26 mpg.

Another high-ranking truck is the gasoline-powered 2022 GMC Canyon 2WD, which, with its four-cylinder, 2.8-liter engine and automatic six-speed transmission, gets 20 mpg city, 30 mpg highway, and 23 mpg combined.

How do these options compare to the competition? The 2022 Chevrolet Silverado 2WD diesel, Ram 1500 2WD EcoDiesel, and the

Ford Maverick

FWD can each get a combined 26 mpg, depending on their configurations. The Ford Maverick Hybrid, meanwhile, gets a combined 37 mpg.

If you’re looking to go all-electric, the 2022 GMC Hummer EV gets an EPA-estimated 47 combined MPGe with a total 329-mile range, but it’s possible those numbers could vary under real-world conditions. For comparison, the 2022 Rivian R1T can get an EPA-estimated 70 MPGe combined, and the 2022 Ford F-150 Lightning can see 70 MPGe combined.

Pro Tip While diesel technically burns more efficiently and can offer better gas mileage, it can still release more harmful particulates per gallon when compared with gasoline.

MORE:

Car loans for GMC 2022

GMC fuel economy by model

In the table below, you can see how the fuel economy of GMC’s vehicles can vary based on different configurations.

Model	City mpg	Highway mpg	Combined mpg	Combined MPGe
2022 GMC Terrain FWD	25	30	27	N/A
2022 GMC Terrain AWD	25	28	26	N/A
2022 GMC Acadia FWD (Four-cylinder, 2.0L engine)	22	29	25	N/A
2022 GMC Acadia FWD (Six-cylinder, 3.6L engine)	22	29	25	N/A
2022 GMC Acadia AWD (Four-cylinder, 2.0L engine)	19	26	21	N/A
2022 GMC Acadia AWD (Six-cylinder, 3.6L engine)	19	26	21	N/A
2022 GMC Canyon 2WD (Four-cylinder, 2.8L engine)	20	30	23	N/A
2022 GMC Canyon 4WD (Four-cylinder, 2.5L engine)	19	25	22	N/A
2022 GMC Canyon 4WD (Four-cylinder, 2.5L engine)	19	24	21	N/A
2022 GMC Canyon 4WD (Four-cylinder, 2.8L engine)	19	28	22	N/A
2022 GMC Sierra 2WD Diesel (Six-cylinder, 3.0-liter engine)	23	30	26	N/A
2022 GMC Sierra 4WD Diesel (Six-cylinder, 3.0 liter engine)	22	26	24	N/A
2022 GMC Sierra 2WD Gasoline (Eight-cylinder, 5.3-liter engine)	15 (11 with E85)	19 (15 with E85)	16 (12 with E85)	N/A
2022 GMC Yukon 2WD (Eight-cylinder, 5.3-liter engine)	15	20	17	N/A
2022 GMC Yukon XL 4WD (Eight-cylinder, 5.3-liter engine)	14	19	16	N/A
2022 GMC Hummer EV	N/A	N/A	N/A	47

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How to save on GMC insurance costs

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FAQs

Which GMC gets the worst gas mileage?

With different configurations, the 2022 GMC Sierra gets as low as an average 15 mpg combined.

However, that can fall lower to a combined 11 or 12 mpg when using E85 fuel on compatible models.

What is the best GMC for gas mileage?

If you’re looking for the best gas mileage on GMC’s lineup, look to the 2022 GMC Terrain. The FWD option gets 27 combined mpg, while the AWD option gets 26 mpg.

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