C9 was introduced as a complement to VP’s popular C10 as an economical alternative that offers more resistance to detonation and substantial performance improvements over premium pump gas. In fact, tests in a crate engine showed gains of 3-4 Hp and more torque than a competitor’s 110 leaded race gas! An ethanol-free, non-oxygenated unleaded fuel, C9 burns very clean and won’t harm catalytic converters or oxygen sensors. Because it contains no ethanol, C9 prevents all the problems associated with ethanol in pump gas and does not require draining the fuel system while engines sit idle. C9 was selected as Spec Fuel for the ACT (American Canadian Tour) Series Castrol Quebec, ACT US and Thunder Road International Speedbowl.