21 MPG combined is an honest, if unremarkable, number for the 2025 Chevrolet Blazer AWD with the 3.6L V6. This isn’t a fuel sipper designed for hypermilers; it’s a stylish mid-size SUV meant to comfortably haul people and gear, with the added security of all-wheel drive for those living in areas with challenging weather. Buyers choosing this configuration prioritize capability and a smooth, responsive engine over outright fuel efficiency, understanding that there’s a tradeoff.

City and highway performance

The EPA estimates peg the Blazer AWD 3.6L at 18 MPG in the city and 26 MPG on the highway. The city number is where many drivers will see the most variance, as stop-and-go traffic and frequent acceleration take their toll on fuel consumption. The highway figure is more attainable, especially on longer trips where the Blazer’s 9-speed automatic transmission can settle into its higher gears, allowing the engine to cruise at lower RPMs. Drivers with longer commutes will likely find their average MPG creeping closer to that 26 MPG mark.

Annual fuel cost

The EPA estimates the annual fuel cost for the 2025 Chevrolet Blazer AWD 3.6L at $2,100. This figure is based on driving 15,000 miles per year and using the national average fuel prices at the time of calculation. Of course, individual fuel costs will vary depending on regional gas prices and personal driving habits. Aggressive driving and extended idling, particularly in colder climates, will push that annual cost higher.

Real-world expectations

While EPA estimates provide a standardized comparison tool, real-world fuel economy can differ. Expect to see figures within a reasonable range of the EPA numbers, but don’t be surprised if your actual MPG varies based on driving style, terrain, and even tire pressure. Factors like carrying extra weight or using roof racks can also negatively impact fuel efficiency. Remember that the 3.6L V6 is known for its responsiveness and smooth power delivery, which can naturally encourage a heavier foot on the accelerator, thus affecting fuel economy. See BLAZER MPG across all years.

How it compares

Compared to other mid-size SUVs with all-wheel drive, the Blazer’s fuel economy lands in the middle of the pack. The Toyota Highlander with a V6 engine achieves around 23 MPG combined, making it noticeably more efficient. On the other hand, the Jeep Grand Cherokee with a V6 and 4×4 comes in around 19 MPG combined. The Ford Edge ST, with its powerful EcoBoost V6, also tends to fall below 21 MPG in real-world driving. The Kia Telluride manages around 20 MPG combined, quite similar to the Blazer. For Blazer buyers, especially those trading up from older, less efficient vehicles, the fuel economy is often an acceptable compromise for the style, performance, and AWD capability they desire. See all Chevrolet fuel economy data.

Tips to maximize efficiency

Use the Blazer’s cruise control system whenever possible, especially on highway drives. Maintaining a steady speed minimizes unnecessary acceleration and deceleration, leading to improved fuel economy. A smooth, consistent pace is key.

Avoid aggressive acceleration and hard braking. The 3.6L V6 provides ample power for merging and passing, but excessively aggressive driving wastes fuel. Anticipate traffic flow and ease onto the accelerator for better MPG. The Blazer’s 9-speed transmission is designed to keep the engine in its most efficient range, so let it do its job.

Ensure your tires are properly inflated to the recommended pressure listed on the doorjamb. Underinflated tires increase rolling resistance, forcing the engine to work harder and reducing fuel efficiency. Check tire pressure regularly, especially with seasonal temperature changes.

Reduce unnecessary weight in the vehicle. Carrying heavy cargo impacts fuel economy. Remove anything you don’t need, such as sporting equipment or tools, to lighten the load. Clearing out that extra weight can lead to marginal, but noticeable gains over time.

Consider using synthetic motor oil that meets GM’s dexos specification when it’s time for your next oil change. Synthetic oils provide better lubrication and reduce friction within the engine, potentially improving fuel efficiency. Always follow the manufacturer’s recommended oil change intervals.