8 Car Maintenance Rules Your Dad Taught You That May Not Apply Anymore

Modern cars require maintenance based on the vehicle manufacturer’s specifications, not outdated universal rules such as changing oil every 3,000 miles – Shutterstock

Some car maintenance rules survive for decades because they once made perfect sense. Change the oil every 3,000 miles. Warm up the engine before driving. Replace all four tires together. Never ignore a little noise.

The problem? Cars changed, but some advice never got the memo. Modern engines, lubricants, tires, electronics, and maintenance systems have rewritten several rules that made sense for older vehicles. Following outdated advice can waste money, shorten the life of certain components, or simply have you spending Saturday morning doing something your car does not need.