This SAE 30W motor/engine oil was formulated for outdoor power equipment such as lawnmower tractors and much more. It s been specially formulated for higher operating temperatures of air cooled engines. This engine oil is intended for use in 4-cycle engines. 18 oz. single bottle for most walk behind lawnmowers. Blended to Briggs & Stratton small engine specifications. Helps keep air cooled engines running smoothly.