Pennzoil 550022771 XLF Marine Synthetic Blend Engine Oil (TC-W3) - 1 Gallon XLF outboard 2-cycle oil mixes easily with gasoline, and is dyed blue to allow for easy detection; follow engine manufacturer's recommended fuel/oil ratio for premix systems Maximum additive treatment, including increased detergency over the TC-W3 formulation Synthetic Blend for high performance applications Protect against piston-scuffing Keep performance-robbing carbon deposits from forming in the combustion chamber, piston tops and under crowns and piston-combustion rings XLF outboard 2-cycle oil mixes easily with gasoline, and is dyed blue to allow for easy detection; follow engine manufacturer's recommended fuel/oil ratio for premix systems Maximum additive treatment, including increased detergency over the TC-W3 formulation NMMA TC-W3 certified Protect against piston-scuffing Keep performance-robbing carbon deposits from forming in the combustion chamber, piston tops and under crowns and piston-combustion rings