What Type of Oil Does a Lawn Mower Use? (4-Stroke vs. 2-Stroke Guide)
Most modern four-stroke lawn mower engines use standard SAE 30 motor oil, with 10W-30 or 5W-30 being common alternatives depending on climate. Two-stroke mowers require a dedicated 2-stroke oil mixed with gasoline. The definitive answer is always in your owner's manual.
