Deatschwerks 101S Octane BoosterDeatschwerks 101S Octane Booster Specifications Deatschwerks 101S octane booster is specially formulated for standard gasoline from the station. It increases the octane rating up to 104 RON for superior performance. In addition this product is safe for O2 sensors and catalytic converters and contains detergents that maintain and preserve the fuel system. Race dyno and laboratory proven Deatschwerks 101S octane booster is simply mixed with gasoline