What gas does Blazer RS take?
The Chevrolet Blazer RS runs on gasoline and uses regular unleaded fuel with a minimum octane rating of 87. Higher-octane fuels are optional and not required for normal operation. It does not run on diesel or flex-fuel mixtures.
Fuel type and octane guidelines
Key fueling rules for the Blazer RS across recent model years.
- Fuel type: gasoline only—do not use diesel or alternate fuel blends not specified by GM.
- Minimum octane: regular unleaded gasoline with an octane rating of 87 (R+M/2 method).
- Premium gasoline: higher octane (89–93) is optional and may offer minor performance gains in some situations, but it is not required for normal driving.
Always check your specific model year’s owner’s manual and the fuel-filler door label for the exact octane recommendation, as there can be engine-option and year-to-year variations.
Engine options and practical implications
In many markets, the Blazer RS has been available with both a turbocharged four-cylinder and a V6 option. Regardless of configuration, GM designs these engines to run on standard gasoline. Readiness for premium fuel varies by engine and model year, so confirm based on your trim.
Where to verify the exact fuel guidance
Refer to the owner’s manual, the fuel door placard, or the in-dash information display for the precise octane specification and fuel compatibility for your vehicle’s year and engine.
Fueling tips and best practices
Clear fueling practices help avoid misfuelling and optimize performance and efficiency.
- Always use gasoline in the appropriate octane range specified for your vehicle.
- Do not attempt to refuel with diesel or biofuels if not approved by GM for your trim.
- In most cases, regular gasoline is sufficient and premium is optional unless you notice knocking or the manufacturer recommends otherwise.
If you drive in extreme conditions or tow heavy loads, check the owner's manual for any specific octane recommendations for those scenarios.
Summary
The Blazer RS uses gasoline, with regular unleaded 87 octane as the baseline. Premium (89–93 octane) can be used but is not required for normal driving. Always verify the exact requirements for your year and engine option in the owner's manual.
