VP Racing M2 Upper Lube Performance Additive is designed to protect the investment in your methanol or ethanol powered engine and will more than pay off at rebuild time. This lubricant will protect valves and valve guides, aluminum fuel system parts, and cylinder walls—and it's rated for use with superchargers! VP Racing M2 Upper Lube Performance Additive is offered in scented or unscented formulas, order the M2 lube suited to your needs.