Chainsaws, trimmers, and outboard motors are likely equipped with 2 stroke engines. Unlike their 4 four stroke counter parts, 2 stroke engines do not have a crankcase. To provide proper engine lubrication, 2 stroke engines require a mix of specially formulated synthetic 2 stroke outboard oil.
Equipment manufacturers typically work with the oil industry to develop these specialty 2 stroke oils. To find out which 2 stroke oil is recommended for your motor, take a look at your owner’s manual. If you can’t find your manual, then check out the manufacturer’s website.