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 inspecting belts and hoses. Keeping up with these tasks can help prevent costly repairs and extend the life of the engine. Additionally, monitoring fluid levels, such as coolant and transmission fluid, is crucial for optimal performance. Regular maintenance can also improve fuel efficiency and reduce harmful emissions. Following the manufacturer's guidelines for maintenance schedules is essential for maintaining the health of the engine.