Thousands of combinations of fuels and oxidizers have been tried over the years. Some of the more common and practical ones are: * liquid oxygen (LOX, O2) and liquid hydrogen (LH2,H2) - Space Shuttle main engines, Ariane 5 main stage, Saturn V, Saturn IB, and Saturn I upper stages as well as Centaur rocket stage * liquid oxygen (LOX) and kerosene or RP-1 - Saturn V, Zenit rocket, R-7 family of Soviet boosters, which includes Soyuz, Delta, Saturn I, and Saturn IB first stages, Titan I and Atlas rockets * liquid oxygen (LOX) and alcohol (Ethanol, C2H5OH) - early liquid fueled rockets, like German (WW2) A-4, aka V-2, and Redstone * liquid oxygen (LOX) and gasoline - Robert Goddard's first liquid-fuel rocket * T-Stoff (80% Hydrogen Peroxide, H2O2) and C-Stoff (methanol, C