Car maintenance describes the act of inspecting or testing the condition of car sub-systems and servicing or replacing parts and fluids. Regular maintenance is critical to ensure thesafety,relaiblity,drivability,comfort andlongevity of a car. During preventive maintenance, a number of parts are replaced to avoid major damage or for safety reasons, e.g. timing belt replacement.
The actual schedule of car maintenance varies depending on the year, make, and model of a car, its driving conditions and driver behavior. Car makers recommend the so-called extreme or the ideal service schedule based on impact parameters such as
number of trips and distance traveled per trip per day extreme hot or cold climate conditions
mountainous, dusty or de iced roads ,heavy stop-and-go vs. long distance cruising
towing a trailer or other heavy load
Experienced service advisors in dealerships and independent shops recommend schedule intervals, which are often in between the ideal or extreme service schedule. They base it on the driving conditions and behavior of the car owner or driver.