GP-7 Racing 2-Cycle Oil is 100% synthetic oil specifically designed for high performance and racing engines. The clean combustion properties of GP-7 offers maximum horsepower and unmatched protection under extreme load and temperature conditions. GP-7 keeps piston crown, head, spark plug, power valve and exhaust port free of residual carbon deposits. It keeps piston rings and ring grooves free of gummy residue to maintain compression and prevent power loss. GP-7 is compatible with engine seals and all plastic parts of the fuel system. Will not mix with alcohol. For premix only.