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. Lucas High Performance Semi-Synthetic 2-Cycle 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. For more specific information on each oil, please review the product specification sheets.