This product is an advanced technology tcw3 "low smoke" two-cycle oil formulated from a special blend of mineral oil, polybutene and a low ash additive system. Lucas 2-cycle racing oil is specially designed to prevent carbon deposits to the piston rings, skirt, crown and under crown areas and prevent exhaust port blocking. It is prediluted with a special solvent to facilitate mixing with gasoline's at all temperatures. Lucas 2-cycle racing oil is recommended for all air and liquid cooled tow-stroke engines and lower specific output air-cooled engines functioning under all operating conditions. Meets the requirement for "low smoke" oils often referred to as "smokeless" oils. Designed primarily for use with oil injection systems where no fuel/oil premixing is required. However, it is also acceptable for use in premixes of gasoline and oil up to 50:1. Key benefits- prevents carbon deposits - mixes well with gasoline's at all temperatures - meets requirements for "low smoke" oils.