Can I Use 10W 40 In A Riding Laen Mower? The SAE 30 motor oil is commonly recommended for use in lawn mower engines, but the best oil to use is the oil recommended by the manufacturer. It is not uncommon for lawn mower engines to use 10W-30 or 10W-40 motor oils, the same types
Can I Use 10W 40 In My Honda Riding Mower? It is okay to put a quart of 10W-40 in an engine with 5W30 in it. The oil will be lower viscosity, but should be fine, if it is a quart of 5W-30. The other way around is to change it from 5W-30 to 10W-40.
Can I Use 10W40 In My John Deere Riding Mower? 10W40 oil has a higher viscosity, retaining more thickness than 10W30 as the temperature rises. In that case, 10W-40 motor oil would technically provide better protection against engine wear contact in higher temperatures. What kind of oil do you put in a John Deere riding