Engol cutter car lubricant range is recommended for the lubrication of cutting chains, cutter bars and drive gear on hand held chain saws.The oil contains an exceptional tackiness additive pack to ensure that adequate lubricant adheres to the rubbing surfaces of this total loss system. Engol cutter bar Lubricant range is used entirely separate from the oil used in the 2 stroke engines and therefore must not be put into the engine. In a chainsaw, the chain is driven by the engine and travels at high speeds around a backing plate called the cutterbar. Pegs attached to the chain fit into a groove in the cutter bar. The chainsaw lube is placed into a tank contained in the main body of the saw and an engine driven pump supplies oil into the groove to lubricate the pegs groove interface.