How many miles per gallon does a 1985 Chevy Blazer get?
In general, a 1985 Chevy Blazer yields fuel economy in the mid-teens, typically around 15–18 miles per gallon in mixed driving. Four-wheel-drive models and those equipped with the V8 tend toward the lower end of that range. Actual mileage varies with engine choice, drivetrain, payload, maintenance, and driving style.
To help readers understand how the numbers break down, the following sections outline typical EPA-era estimates by engine and drivetrain, along with key caveats for real-world driving.
Engine options and typical miles per gallon
The numbers below show typical EPA-era ranges by engine and drivetrain configuration. They illustrate how a 4.3L V6 differs from a 5.0L V8, and how 2WD compares with 4x4.
- 4.3L V6 (approx. 165–190 hp), 2WD with automatic transmission: roughly 17–20 mpg on the highway and about 15–18 mpg in mixed city/highway use.
- 4.3L V6 (approx. 165–190 hp), 4x4: roughly 14–16 mpg in city driving and 18–20 mpg on the highway, depending on gearing and load.
- 5.0L V8 (approx. 210–265 hp), 2WD with automatic: typically 14–16 mpg city and 18–20 mpg highway.
- 5.0L V8 (approx. 210–265 hp), 4x4: typically 13–15 mpg city and 18–19 mpg highway.
These figures are approximate ranges based on era-era estimates and reflect typical variations in drivetrain, gearing, and usage. Real-world results can deviate based on condition and driving style.
Context and caveats
EPA ratings of the era
EPA testing methods in the mid-1980s differed from modern cycles, and highway figures were often influenced by vehicle weight, gearing, and equipment. Many Blazers did not achieve the upper ends of the published ranges in typical daily driving, especially when used off-road or with heavy loads.
4x4 impact and towing
Four-wheel-drive models and those used for towing or carrying heavy payload generally consume more fuel, reducing miles per gallon by several mpg compared with their 2WD counterparts.
Maintenance, weight, and modifications
Condition matters: a clean, well-tuned carburetor or fuel system, correct tire size and inflation, and minimal added weight help maintain better efficiency. Modifications such as oversized tires, lift kits, or heavy roof racks can significantly lower mpg.
Summary
For a 1985 Chevy Blazer, expect mileage in the mid-teens on average, with typical ranges from about 13–20 mpg depending on engine, drivetrain, and driving conditions. The V6 2WD configuration generally yields the higher end of the range, while 4x4 and V8 setups skew lower. Always consider the specific build, maintenance history, and operating conditions when estimating actual fuel economy.
