To determine the type and amount of oil needed for a lawn mower, it is important to consult the owner's manual or the manufacturer's website. Briggs & Stratton recommends using a high-quality detergent oil classified as "For Service SF, SG, SH, SJ" or higher, and synthetic oils are acceptable at all temperatures. The oil capacity for walk-behind mowers is typically 15oz or 18oz, while riding mowers typically require 48oz or 64oz. It is important to check the oil level during the season and add when necessary, and to change the engine oil every 50 hours or annually, whichever comes first
. Other manufacturers may recommend different types of oil, such as SAE 30 or synthetic 5W30, so it is important to consult the owner's manual or the manufacturer's website for specific recommendations
