Do it Best Premium All-Season Bar and Chain oil. Designed for use with all chainsaws to extend the life of the chain byprevent rusting and reducing wear and linkage breakage. Designed to perform in both hot and cold temperatures. Formulated with tackifier, additives that help the oil cling to the bar and chain, for enhanced performance at high speeds by reducing throw off. Additional benefits include reductions in the wear of cutting surfaces and heat, as well as rust and corrosion protection.