Rislone octane booster 6 fl oz, 12 pack
Octane booster with antiknock formulation to reduce knock and improve performance. Supports unleaded fuels including E10, E15, E85 and racing fuel; one bottle treats up to 20 gallons
Highlights
- anti-knock protection
- broad fuel compatibility
- treats up to 20 gallons per bottle
Pros
- restores horsepower and performance
- antiknock formulation reduces pings
- works with multiple fuel types
- high concentrate per street-use regulations
Cons
- mixed feedback on fuel economy impact
- customer notes vary by vehicle type
Best For
Features
- Restores horsepower and performance by reducing engine knock and ping from low-quality fuel
- Raises octane by over 20 points or 2 rating numbers with high-concentration MMT content for street use
- Compatible with unleaded gasoline, including ethanol blends E10, E15, E85, and racing fuel
- Treats up to 20 gallons of gasoline per bottle without harming catalytic converters or oxygen sensors
- Suitable for fuel-injected, direct-injected, GTDI, and carbureted street/racing engines
