Lucas High Performance Semi-Synthetic 2-Cycle Oil has been specifically developed to give a long trouble-free life to gasoline-powered 2-cycle engines. Designed for any oil injection system or pre mix up to 50:1. Use in Snowmobiles, Weed Eaters, Leaf Blowers, Chain Saws, and more. This oil uses an advanced smokeless formula specially blended from mineral oil, synthetic oil, and a low ash additive package containing fortified dispersant inhibitors. It also contains exclusive detergents and lubricants. The end result of this advanced technology is a more thorough burning of the fuel resulting in more power and fewer emissions. Lucas ashless detergent inhibitor package minimizes spark plug fouling, pre-ignition, ring sticking, and combustion chamber deposits. The user can expect cleaner exhaust ports and spark plugs, less carbon buildup on the piston rings, skirts, crown, and under crown areas.