Common Myths About Car Maintenance Busted

Car maintenance advice gets passed around all the time. Some of it comes from experienced mechanics, some from well-meaning friends and some… well, some should probably have stayed in the past. The problem is that outdated or incorrect information can end up costing you money or even shortening the life of your vehicle.

Sorting fact from fiction makes a big difference when it comes to keeping your car running properly. Let’s clear up a few of the most common myths that still seem to stick around.

Myth 1: You Must Change Your Oil Every 5 000 km

This one has been around for years. While it used to be true for older vehicles and conventional oils, modern engines and synthetic oils have come a long way.

Many manufacturers now recommend oil change intervals between 10 000 km and 15 000 km, depending on the vehicle and driving conditions. Always check your owner’s manual rather than relying on a one-size-fits-all rule.

Changing oil too frequently isn’t harmful, but it can be unnecessary and expensive.

Myth 2: Premium Fuel Makes Every Car Perform Better

Premium fuel is often seen as the “better” option, yet not every engine is designed to use it.

Vehicles are built to run on a specific octane rating. Using a higher octane fuel than required usually won’t improve performance or fuel economy in standard engines. In fact, it can simply mean spending more money for no real benefit.

High-performance or turbocharged engines may require premium fuel, so it always comes down to the manufacturer’s recommendation.

Myth 3: Warming Up Your Car for Several Minutes Is Necessary

Letting your car idle for long periods to “warm up” used to be common practice, especially with older carburettor engines.

Modern fuel-injected engines don’t need extended idling. In most cases, 30 seconds to a minute is enough before driving off gently. Driving at moderate speeds allows the engine to reach its optimal operating temperature more efficiently.

Long idling can actually waste fuel and increase engine wear over time.

Myth 4: You Only Need to Service Your Car When Something Goes Wrong

Waiting until a problem appears before servicing your vehicle is a risky approach.

Regular maintenance is designed to prevent issues before they happen. Skipping scheduled services can lead to worn components, reduced efficiency and unexpected breakdowns.

Routine checks help identify small problems early, which is almost always cheaper and easier to fix.

Myth 5: Brake Pads Are the Only Part That Wears Out

Brake pads do wear out, but they are not the only components that need attention.

Brake fluid absorbs moisture over time, discs can wear unevenly, and callipers or hardware can develop faults. Focusing only on pads can lead to incomplete maintenance and reduced braking performance.

A proper brake inspection always looks at the entire system.

Myth 6: All Engine Oils Are the Same

Walking into a parts store and grabbing any oil off the shelf might seem convenient, but not all oils are created equal.

Different engines require specific oil viscosities and formulations. Using the wrong oil can affect lubrication, fuel efficiency and long-term engine health.

Sticking to the manufacturer’s recommended oil type ensures the best performance and protection.

Myth 7: Tyre Pressure Isn’t That Important

Tyres are often overlooked until something goes wrong, yet correct tyre pressure is essential for safety and performance.

Underinflated tyres increase fuel consumption, wear out faster and reduce handling stability. Overinflated tyres can reduce grip and lead to uneven wear.

Checking tyre pressure regularly, especially before long trips, makes a noticeable difference.

Why These Myths Stick Around

Many of these myths come from older vehicles, outdated technology or general assumptions that have been repeated over time.

Cars have evolved significantly over the years. Modern vehicles are more efficient, more precise and often require different maintenance approaches than older models.

Relying on current, accurate information helps you make better decisions about your vehicle.

Car maintenance doesn’t have to be complicated, but it does need to be accurate. Following outdated advice can lead to unnecessary costs or even damage to your vehicle.

Understanding what actually matters, and what doesn’t, puts you in control. Simple habits like checking your owner’s manual, sticking to service intervals and paying attention to how your car feels can go a long way.

Keeping your vehicle in good condition isn’t about doing more. It’s about doing the right things at the right time.

A little knowledge, when it’s the correct kind, makes all the difference on the road.