This 15‑ounce octane booster significantly raises gasoline octane by up to three points, making it a powerful enhancer for turbocharged, supercharged, or high-compression engines. Its advanced formula includes upper-cylinder lubricants to reduce wear on valves, pistons, and fuel systems, ensuring smoother operation and extended component life. Compatible with both carbureted and fuel-injected engines, the additive is safe for turbochargers, oxygen sensors, and catalytic converters. It also promotes cleaner fuel burn, reducing emissions. Ideal for occasional use or every tank, this bottle treats up to 25 gallons. Compact 5.25 oz and 2 oz sizes are also available for smaller fuel systems or motorcycles.