Check the listing for details. VP Racing Fuels 29505 Madditive Octanium Unleaded Octane Booster - Quart. Condition: New. Listed at 25.99 USD. VP Racing Fuels 29505 Madditive Octanium Unleaded Octane Booster - Quart Octanium Unleaded is a VP octane booster that gives your octane a boost of up to 7 numbers (70 points). Compare that to the boost provided by other brands. In fact, many brands don't even specify their actual octane boost number while others only provide a boost of up to 3 to 5 numbers. Octanium Unleaded is safe for limited use in cars and trucks that have oxygen sensors and catalytic converters. Furthermore, VP's unleaded octane booster is a true engine performance enhancer that improves throttle response and acceleration when used as directed. One 32-ounce bottle treats up to 10 gallons of gas (38 liters). One bottle treats up to 10 gallons of fuel (38 Liters)Gives high octane boost of up to 7 numbers (70 points)Improves throttle response and accelerationEliminates gum and varnish build-up