Due to delayed EPA fuel economy ratings, deliveries of the all-new 2023 Chevy Colorado were pushed back, but are finally ramping up. Previously, GM Authority reported on L2R fuel economy ratings, as well as L3B 4WD figures, in separate articles. Now, we’ve tracked down all the fuel economy ratings for the 2023 Colorado, and here they are in one place.
The EPA’s city/highway/combined fuel economy ratings for the most efficient configuration of the 2023 Chevy Colorado are 20/25/22 mpg. In the least efficient configuration, the numbers amount to 16/16/16 mpg.
| 2023 Chevy Colorado | 2023 Chevy Colorado | 2023 Chevy Colorado With Mud Terrain Tires | 2023 Chevy Colorado ZR2 | 2022 Chevy Colorado | 2022 Chevy Colorado | 2022 Chevy Colorado ZR2 | 2022 Chevy Colorado | 2022 Chevy Colorado ZR2 | |
|---|---|---|---|---|---|---|---|---|---|
| Engine | Turbo 2.7L I4 L2R | Turbo 2.7L I4 L3B | Turbo 2.7L I4 L3B | Turbo 2.7L I4 L3B | 2.5L I4 LCV | 3.6L V6 LGZ | 3.6L V6 LGZ | Turbo-diesel 2.8L I4 LWN | Turbo-diesel 2.8L I4 LWN |
| Transmission | 8-speed automatic | 8-speed automatic | 8-speed automatic | 8-speed automatic | 6-speed automatic | 8-speed automatic | 8-speed automatic | 6-speed automatic | 6-speed automatic |
| Drivetrain | 2WD/4WD | 2WD/4WD | 4WD | 4WD | 2WD/4WD | 2WD/4WD | 4WD | 2WD/4WD | 4WD |
| City (mpg) | 20/19 | 18/17 | 17 | 16 | 19/19 | 18/17 | 16 | 20/19 | 18 |
| Highway (mpg) | 25/23 | 23/21 | 19 | 16 | 25/24 | 25/24 | 18 | 30/28 | 22 |
| Combined (mpg) | 22/21 | 20/19 | 18 | 16 | 22/21 | 21/19 | 17 | 23/22 | 19 |
For reference, the Work Truck (WT) and LT trim levels are equipped with the 2.7L I4 L2R as standard fare, while the 2.7L I4 L3B Turbo Plus is optional. Meanwhile, the Trail Boss and Z71 receive the L3B Turbo Plus as standard, while the ZR2 features the L3B High-Output engine. Notably, LT, Trail Boss and Z71 models can also be equipped with the dealer-installed L3B High-Output engine calibration.
Looking over the graph, there are quite a few takeaways. For starters, fuel economy ratings are the same between L3B Turbo Plus and L3B High-Output tunes. In addition, wheel and tire choices don’t affect ratings, with one exception. Trail Boss units equipped with the optional LT275/65R18C Goodyear Wrangler Territory OD MT tires (RPO code R3O) receive lower fuel economy ratings, as does the ZR2 with its standard mud terrain tires.
In comparison to prior model years, there are a few notable trends. Firstly, the 2023 Colorado ZR2’s rating slots right in-between the 2022 ZR2’s 3.6L V6 LGZ and 2.8L I4 LWN turbodiesel Duramax fuel economy ratings. Moreover, both L3B engine variants are slightly less efficient than the 2022 Colorado with the 3.6L V6 LGZ, while the L2R is about as efficient as the 2022 Colorado with the 2.5L I4 LCV.
Of course, the diesel LWN engine is a good bit more efficient than either the L2R and L3B engines. However, the diesel was an option that cost between $3,720 and $5,210 depending on the chosen trim level.
As a quick refresher, the 2023 Chevy Colorado is available with three output levels across two engine choices. The base turbocharged L2R is rated at 237 horsepower and 260 pound-feet of torque. Meanwhile, the L3B Turbo Plus and L3B Turbo High-Output configurations make 310 horsepower and 391 pound-feet of torque or 310 horsepower and 430 pound-feet of torque, respectively.
In regard to transmission options, all units are equipped with the revised GM eight-speed automatic transmission.
Under the skin, the 2023 Chevy Colorado, as well as the 2023 GMC Canyon, rides on the updated 31XX-2 platform, while production is currently under way at the GM Wentzville plant in Missouri.
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Comments
Wow, another article on this I don’t know I just shut up quality control as they are on these new vehicles spending 60 K plus for a midsize truck Come on GM don’t let us down
I would expect the volume engine to be the L3B in 4X4 form with its low 17/21 fuel economy rating. What’s even more bizarre is this same engine in its highest torque form in the larger full size Silverado/Sierra actually gets one better city and the same combined and highway than this mid size truck. Something doesn’t add up
Agreed, why higher mpg on Silverado? Colorado is lighter. Did see that 1st gear ratio is different between the two trucks though, maybe that affects the city mpg?
Of course it could be the EPA under Biden is intentionally giving lower ratings to promote EVs. Even though there isn’t any EV competitors. I wouldn’t put anything past that dipsh*t.
Weird, the rating is the same on the 2.7L in 2019 as it was in 2022 for the Silverado and the 2022 has more power than the 2019…so, it seems like maybe you are the dipsh*t.
Could just be the trim mix on the Silverado 2.7T’s having markedly less of off-road focused tires – that can eat an MPG or 2 in no time. But it is odd.
Anotherblet down..great looking vehicle but engine choices…suck
I guess increased h.p. comes at the expense of decreased m.p.g. I just don’t get the increased weight that went along with it. I thought the new Colorado would weigh less to boost m.p.g. a little.
This is ridiculous, these mileage ratings stink for a 4 banger. I’ll stay with my 2022 Colorado v6. And the pricing is bad as well. The Z71 I have was $39k, comparable 2023 is $7k more! For what? Fancy screens and the Toyota look a like body??
Yep. It’s completely ridiculous. Buy a 2022 Z71, it’s fully loaded. Buy a 2023 Z71, it’s a base WT truck interior unless you spend $7K in option packages to put back all the Z71 interior content GM removed from the vehicle. And even then, you are still stuck with a manual passenger seat. Such bologna.
Now let’s get them rolling. Still barely a trickle out of the factory. Thousands built up with no public explanation why, or a timeline on when. Let’s go GM.
Someone is using my name, thanks pal…
I take these “EPA Numbers” with a grain of salt. I own both an 2018 LCV ( 6-spd. manual) and an 2022 LGZ (8-spd auto) powered Colorado. The fuel economy is NOT the same. You can count on 3 mpg better in the real world with the 2.5 4 cyl. Both driven exactly the same way up to 75 mph cruising.
According to Chevrolet’s Inventory there are roughly 7,500 Colorado’s “In Transit” to dealers. Been this way for weeks. Where are they?
Seems like the 2023’s will be available roughly when the 2024’s come out. I’m a GM guy but at this rate the 2024 Tacoma will be available the same time as the 2023 Colorado….
No kidding. My Z71 has been produced since March 3. It has since been “In Transit” for 6 weeks! These are just sitting in production lots getting depreciated by weather and heat/cold. If this doesn’t come before June 1 I’m going to wait until 2024 model that will probably be announced by then.
The base 2.7L for a Silverado doesn’t have mud terrain tires,there is your 1 mpg loss.I own a 2019 Silverado Trail Boss and it came with the Goodyear mud terrains that killed mpg 1-2 mpg,I know this because I sold those tires at 17K miles and bought Hercules Terra Trac A/T tires and my mpg’s increased.Also the mud terrain tires are very noisey however the grip is tremendous,to each ther own.I like the look of the new Colorado a lot and improvements were made.It will be interesting to see boosted HP/TQ numbers when the aftermarket offers larger downpipes,CAI and programmers.
What octane is required?
87
Insane! My ‘23 Silverado High Country 4WD with a 3.0 Duramax Diesel is getting higher city, highway and combined mileage than the Colorado4 cylinder 4WD? I run circles around their best performers! The Colorados weighs less, are smaller and are poorer performers
Yeah…it’s a diesel, and the 4×4 Colorado weigh a couple hundred pounds less, maybe. If this 4 wasn’t tuned to produce more HP and 30lb less torque than your diesel they would get better MPG than they do. Also, it’s a diesel.