Engine maintenance involves regular checks and services to ensure that a vehicle's engine operates efficiently and reliably. This includes tasks such as changing the oil, replacing air filters, and checking fluid levels. Keeping the engine clean and well-lubricated helps prevent wear and tear, which can lead to costly repairs. Additionally, engine maintenance includes inspecting belts and hoses for signs of wear, as well as monitoring the battery and spark plugs. Regular maintenance can extend the life of the engine and improve fuel efficiency, ultimately saving money and enhancing performance for the vehicle owner.