For automobile owners, the terms "factory scheduled maintenance" or "30/60/90K maintenance" are widely misunderstood ideas. They basically refer to the same thing, namely, the auto maintenance schedule recommended by the car's manufacturer. It's often called "30/60/90K factory maintenance" because, for most vehicles, the maintenance is scheduled every 30,000 miles.

Many drivers consider this maintenance schedule to be optional, or worse, they think it's a ploy by the dealership to get more money out of them. Neither is actually true. For most manufacturers, the 30/60/90K maintenance schedule is a condition for honoring the warranty. Furthermore, keeping this maintenance schedule can actually extend the life of your vehicle, as well as saving you money on more costly repairs down the road.