Debunking 6 Common Car Maintenance Myths

July. 16,2025

This article dispels common myths about car maintenance, helping vehicle owners save money and avoid unnecessary repairs. It covers topics like oil changes, engine warm-up, brake fluid, filters, cooling systems, and air conditioning, providing accurate advice based on modern vehicle technology. Understanding these facts ensures better vehicle care, enhanced performance, and cost-effective maintenance routines.

Debunking 6 Common Car Maintenance Myths

Debunking 6 Common Car Maintenance Myths

Oil change every 3,000 miles: Consult your vehicle’s manual instead of following arbitrary intervals suggested by oil marketers. Most cars can go 7,500 miles or more before an oil change under normal driving conditions.

Debunking car maintenance myths
Changing your oil won’t harm your engine but might be unnecessary if your vehicle can run longer between changes.

Warm up your car before driving: Many still believe in pre-warming their vehicle, but modern engines warm quickly once you start driving, optimizing performance faster.

Brake fluid needs frequent replacement: Brake fluid mainly lubricates and facilitates brake movement. It generally only needs changing every one or two years, depending on your car’s manual.

Tuning the engine: Regular tune-ups help maintain optimal engine performance but are typically recommended every 30,000 miles rather than more frequently.

Replacing filters often: Oil, air, fuel, and transmission filters don’t all require frequent replacement. Follow your owner’s manual or consult your mechanic for appropriate intervals.

Cooling system maintenance: Modern vehicles use closed radiator systems, with coolant lasting up to two years or more, reducing the need for biannual flushes.

Using air conditioning vs. opening windows: While AC does consume more fuel, driving with windows open causes drag, making your vehicle work harder and using more fuel overall.