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2023 GMC Terrain Fuel Economy Almost Unchanged Compared To 2022 Model

As the sixth model year of the current second-generation compact crossover, the 2023 GMC Terrain introduced a few changes over the refreshed 2022 model. Among these updates is a new powerplant, and now, GM Authority has learned how its fuel economy ratings compare to those of the 2022 GMC Terrain.

As a quick refresher, the 2023 GMC Terrain is equipped with the new turbocharged 1.5L I4 LSD engine, producing 175 horsepower at 5,800 rpm and 203 pound-feet of torque at 2,000 rpm. The LSD engine replaces the turbocharged 1.5L I4 LYX found in most 2018 to 2022 GMC Terrain units, which was rated at 170 horsepower at 5,600 rpm and 203 pound-feet of torque at 2,000 rpm.

The new LSD engine is mated to the GM nine-speed automatic transmission. With the new engine, fuel economy numbers are the slightly lower for FWD models and slightly higher for AWD models.

As seen below, FWD models with the new engine deliver one mpg less than their 2022 counterparts in city, highway and combined estimates. Meanwhile, AWD models with the new engine are more efficient by one mpg in the city than their 2022 model-year equivalents, yet retain the same combined mpg.

2023 GMC Terrain Fuel Economy Ratings Vs. 2022 GMC Terrain
Powertrain Power (hp / kW @ rpm) Torque (lb-ft / Nm @ rpm) Drivetrain City (mpg) Highway (mpg) Combined (mpg)
2023 Terrain Turbocharged 1.5L I4 LSD 175 / 131 @ 5,600 203 / 275 @ 2,000 to 4,000 FWD 24 29 26
2023 Terrain Turbocharged 1.5L I4 LSD 175 / 131 @ 5,600 203 / 275 @ 2,000 to 4,000 AWD 26 28 26
2022 Terrain Turbocharged 1.5L I4 LYX 170 / 127 @ 5,600 203 / 275 @ 2,000 to 4,000 FWD 25 30 27
2022 Terrain Turbocharged 1.5L I4 LYX 170 / 127 @ 5,600 203 / 275 @ 2,000 to 4,000 AWD 25 28 26

It’s worth noting that GM does not consider the LSD a “new” engine. The only differences between the two are tweaks to improve combustion and emissions.

In addition to the new engine, the 2023 GMC Terrain also receives a revised list of exterior paint options and a new electro-hydraulic braking system that will replace the traditional vacuum-assisted braking system.

GMC Terrain production takes place at the GM San Luis Potosí plant in Mexico. Production of the 2023 model year commenced on August 22nd, 2022.

Under the skin, the 2023 Terrain rides on the GM D2 platform, which it shares with the Chevy Equinox. It’s worth noting that the 2023 Chevy Equinox shares the new LSD engine with the Terrain, but the boosted four-pot is mated to the GM six-speed automatic transmission in that application.

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As a typical Florida Man, Trey is a certified GM nutjob who's obsessed with anything and everything Corvette-related.

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Comments

  1. Sweet, I think? I’m a little bit confused. The 2023 Chevy Equinox is going to lose fuel economy in the AWD variant, but the 2023 GMC Terrain AWD pulls an uno reverse card and becomes *more* fuel efficient compared to the 2022 model. Considering they are sister cars, this is odd to me.

    Reply
    1. To be more specific, I’m referring to the “city” numbers in all cases.

      Reply
    2. Options (particularly wheel size) and trim level change each car’s MPG, primarily by adding weight. The fuel economy figures have to be adjusted based on sales to match the average MPG. See 40 CFR 600.206-12(a)(2) for all the gory details.

      Reply
      1. I decided to torture myself and read that. It didn’t help me one bit. 🙂 By all means correct me if I’m mistaken, but I poured over the changes to the 2023MY and they’re pretty much getting the same upgrades. Same engine, leather steering wheel, tire size (17-19 inches), general dimensions etc. I don’t understand how the same upgrades could produce opposite effects for these models. I’m not saying there’s a mistake in the data, but it would fit more if one of the numbers was mistaken and both AWD models were either losing or gaining 1 mpg in the city. Otherwise, I’m at a total loss to explain this.

        Reply
        1. Read what I wrote again. “fuel economy figures have to be adjusted based on SALES”

          The tow package drops fuel economy because they have to put a heavy hitch and big radiator on. If in year 1 they expect 40% of cars to have a tow package. They calculate an average car weight and MPG based on that. If instead, they get orders and sell 50% of cars with the tow package, that factor has to be used for year 2, which will drop the advertised fuel economy.

          Reply
        2. The Terrain uses a 9-speed automatic while the Equinox is still using a 6-speed automatic. Gearing will effect the fuel economy as well.

          Reply
  2. Doesn’t the Equinox have the super high tech six speed?(sarcasm)

    Reply
  3. I find it really hard to believe the AWD model gets 2 more city MPG than the lighter FWD version. This defies logic in every way.
    The Equinox is the exact opposite. I think they need to redo the testing.

    Reply
  4. The terrain with those mileage numbers are pretty good considering the engine size and transmission combination the 1.5 I guess is a little work horse and competitive with all the other manufacturers but me personally I still would prefer the 2.0 l engine in that vehicle it just makes sense !! But settling for the 1.5 engine by today standards and slowly phasing out gas engine and going electric is the future which is exiting to see gm next line up for the terrain!!

    Reply
  5. Like this in AT4 trim, but mpg is horrible. If GM would do a hybrid version, would be more appealing, but at this price point, many other options out there making the Terrain a no go for me. Or, hold out for 2-3 years for Equinox and Blazer in EV.

    Reply

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