Briggs & Stratton 100107 2-Cycle 3.2-Ounce Bottle of Easy Mix Ashless Oil for Up to 50:1 Mix Ratio For use in air-cooled 2-cycle engines Ashless oil formulation leaves no residue and prevents plug fouling and engine deposits Pre-diluted to mix quickly with leaded or unleaded gasoline 3.2-Ounce bottle For an mix ratio up to 50:1