Learn More › Adding or changing oil for lawn mower engines is a critical part of regular lawn mower maintenance. How often ...

Oil spilled onto deck during an oil change: If you changed your lawn mower’s oil recently or added more to the tank, you may have accidentally dripped some onto the deck.

Leaking oil from the exhaust is the usual cause of blue, white, or black smoke from a lawn mower. Learn to assess and fix a sputtering, smoking lawn mower.