Do it Best SAE 40 bar and chain oil is designed to prevent rusting and reduce wear and linkage breakage thus extending bar and chain life. Penetration into rivet holes and the bar channel is assured. Designed especially for lubrication of bar and chain saws and open or enclosed chains on motorcycles, snowmobiles, and lawn and garden equipment. Additional benefits include high load carrying capacity minimizing wear of bar and chain, reduced throw off and heat build up, and rust and corrosion protection. Recommended for use in temperatures above 20 deg (degree).