Look for reward codes on specially marked Valvoline product as follows: Valvoline's MaxLife Fuel System Cleaner, Valvoline's SynPower Complete Fuel System Treatment, Valvoline's SynPower Super Concentrated Fuel Injector and Intake Cleaner, Valvoline's MaxLife Dexron III/Mercon ATF, Valvoline's Conventional Motor Oils, Valvoline's SHPO Motor Oil, Valvoline's DuraBlend Motor Oil, Valvoline's MaxLife Motor Oil, and Valvoline's VR1 Racing Motor Oil