B'laster Small Engine Tune-Up is formulated to assist in the preventative maintenance of all two and four-cycle combustion engines. It dissipates moisture and inhibits rust and frees rings and valves, restoring compression, power and vacuum. BLaster on - lawn mowers, leaf blowers, chain saws, snow blowers, edgers/trimmers, tractors, compressors, welders, pumps, atvs, motorcycles, jet skis, marine outboard engines, generators.