How many miles per gallon does a 2004 Chevy Blazer LS get?
The 2004 Blazer LS typically returns about 15-17 miles per gallon in city driving and around 20-23 miles per gallon on the highway, with variations based on engine and whether the vehicle uses two-wheel drive or four-wheel drive.
Engine options and transmissions
To understand the mpg figures, it helps to know the powertrains available in the 2004 Blazer LS and how they pair with the four-speed automatic transmission. The LS trim generally offered two gasoline engines, with drivetrain choices that affected efficiency.
- 4.2-liter inline-six (I6) engine
- 5.3-liter V8 engine
In practice, many 2004 Blazer LS models were equipped with the inline-six, while the V8 option appeared in some configurations. Drivetrain (2WD vs. 4WD) also played a role in overall fuel economy.
EPA fuel economy by drivetrain and engine
EPA estimates for the 2004 Blazer LS show how mpg varies by engine and whether the vehicle is two-wheel drive or four-wheel drive. The figures below reflect typical ranges for this model year.
- 4.2L I6, 2WD: about 16–17 mpg city / 21–23 mpg highway
- 4.2L I6, 4WD: about 15–16 mpg city / 20–22 mpg highway
- 5.3L V8, 2WD: about 15–16 mpg city / 20–22 mpg highway
- 5.3L V8, 4WD: about 14–15 mpg city / 19–21 mpg highway
These numbers are EPA estimates and can vary with tire size, cargo weight, and driving conditions. Real-world mileage often falls short of the EPA figures, especially under heavy loads or aggressive driving.
Real-world considerations and tips to maximize efficiency
Maximizing fuel economy on a 2004 Blazer LS involves routine maintenance and mindful driving. Keeping tires inflated to recommended levels, reducing excess weight, and adopting smoother acceleration and braking can yield noticeable gains.
- Keep tires properly inflated and align wheels as needed
- Perform regular maintenance (oil changes, air filter, spark plugs)
- Drive with gradual acceleration and steady speeds; minimize idling
While these practices help, the Blazer LS remains a mid-sized SUV, so its mpg will naturally be lower than that of modern compact crossovers.
Summary
For a 2004 Chevy Blazer LS, expect roughly 15–17 mpg in city driving and 20–23 mpg on highways, with actual numbers depending on engine choice (I6 or V8) and whether the vehicle uses 2WD or 4WD. Real-world results will vary based on maintenance, load, and driving conditions.
