Answer:
Since the invention of cars, manufacturers always remind their customers to have their units undergo regular check-ups and maintenance for a trouble-free driving experience and to prolong the life of the car as well. With modern engineering, car manufacturers have been able to determine the life expectancy of a certain car component or part, thus enabling them to come up with a list of a systematic schedule for the car wherein the fluids, lubrication and parts of the car have be topped-up or replaced. This list is called the Preventive Maintenance Schedule (PMS), which if followed to the letter, will prevent frustrations caused by car trouble and prolong the usable life of any vehicle.
