Top 10 Car Maintenance Myths Every Car Owner Should Know

Maintaining a modern vehicle requires accurate information, yet many car owners still rely on outdated recommendations or misconceptions that no longer apply to today’s automotive technology. These car maintenance myths can lead to unnecessary expenses, ineffective maintenance routines, and avoidable mechanical problems. With vehicles becoming more advanced and systems more precise, understanding the difference between factual guidance and outdated beliefs is essential for keeping your car running reliably and safely.

In this blog, we break down the top car maintenance myths that many Melbourne car owners still believe. Understanding these misconceptions can help you make better choices when booking your next car service in Melbourne.

What Are the Most Common Car Maintenance Myths?

Below are some of the most common myths that often mislead car owners: 

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

This common car maintenance myth comes from outdated technology. Modern engines run more efficiently, and advanced synthetic oils last much longer, allowing many vehicles to safely go 10,000–15,000 km between oil changes without affecting performance or engine health.

The correct interval depends on:

• Your driving conditions

• Oil type

• Vehicle model

• Manufacturer recommendations

Instead of relying on old rules, it is ideal to follow your logbook or consult an experienced mechanic at a mechanical workshop near you for the correct recommendations. For more detailed information, read our blog: Complete Information on Vehicle Engine Oil Changes and Related Queries

Myth 2: Premium Fuel Will Improve Your Car’s Performance

Unless a vehicle specifically requires premium unleaded, using higher-octane fuel does not improve performance, horsepower, or fuel economy. This common car maintenance myth often leads to unnecessary expenses. For most vehicles, regular unleaded is perfectly sufficient. While premium fuel won’t damage the car, it offers no real benefits unless the engine is designed for it.

Myth 3: Your Car Only Needs a Service When Something Goes Wrong

Many car owners assume they can wait for problems to appear before scheduling a service. In reality, preventive maintenance is key to ensuring long-term vehicle reliability and performance.

Regular maintenance:

• Protects your engine

• Prevents major breakdowns

• Improves fuel efficiency

• Extends your vehicle’s durability

Waiting for warning signs usually leads to more expensive car repair services in the future.

Myth 4: Warm Up the Engine for Several Minutes Before Driving

This was once necessary for older cars, especially in cold climates. Modern engines, however, do not require long idle times.

In fact, extended idling can:

• Waste fuel

• Increase emissions

• Cause unnecessary wear

Mechanics recommend idling for 30 seconds before gently driving away. Your engine warms up faster while moving, not sitting idle.

Myth 5: A Battery That Starts Your Car Is in Good Condition

A car battery can often start the engine even as it approaches failure. Modern batteries degrade gradually, sometimes without any obvious warning. A routine battery test during a service visit is the most reliable way to assess its condition. This simple check can prevent unexpected breakdowns.

To learn more about the ideal timing for replacement, read our guide, When Is the Right Time to Replace Your Car Battery?

Myth 6: Brake Pads Only Need Changing When They Get Noisy

Squeaking brakes get the most attention, but noise is only one sign of brake wear. Many brake pads wear down silently.

Other indicators include:

• Increased stopping distance

• Vibrations

• Soft brake pedal

• Dashboard warning lights

Regular brake inspections can prevent rotor damage and reduce the need for expensive car repair in Melbourne. 

To learn more about what a brake inspection involves, including the process, duration, and cost, check out our detailed guide: Everything You Need to Know About Car Brake Inspections: Process, Duration & Cost

Myth 7: Tyres Only Need Replacing When the Tread Looks Low

While tread depth is important, it’s not the only factor affecting tyre safety. Tyres also degrade from:

• Weather exposure

• Age

• Irregular wear

• Under-inflation

• Heat

Even if the tread looks fine, tyres older than five years should be inspected at a mechanical workshop.

Proper tyre maintenance also includes wheel alignment and rotation, both of which are essential for even wear and safe handling.

Myth 8: All Car Workshops Provide the Same Level of Servicing

Not all workshops are equal. Equipment quality, mechanics' experience, diagnostic tools, and service processes vary significantly. An experienced mechanic will perform thorough checks, use proper parts, and follow manufacturer guidelines, something not guaranteed everywhere.

Choosing the right workshop ensures accurate diagnosis and long-term safety for your car.

Myth 9: Air Conditioning Only Needs Attention When It Stops Cooling

Your air conditioning system requires regular maintenance long before it stops working. Components such as the compressor, cabin filter, and refrigerant levels need periodic inspection.

Ignoring this system can result in:

• Foul odours

• Poor airflow

• Increased fuel usage

• Costly AC repairs

Regular AC servicing maintains optimal performance and efficiency of the system. To learn more about how often your car air conditioning needs attention, check out our guide: How Often Does Car Air Conditioning Need to be Serviced?

Myth 10: DIY Car Repairs Save Money Every Time

This is one of the most misleading car maintenance myths. While simple tasks like changing wiper blades or topping up fluids can be done at home, modern vehicles are built with complex electronics and sensors.

DIY repairs on areas such as brakes, engine components, or electrical systems often lead to:

• Additional damage

• Safety hazards

• Voided warranties

• Bigger repair bills

Experienced mechanics at a reliable mechanical workshop have the training and tools required for proper repairs.

Understanding the Most Common Car Maintenance Tasks

The most common maintenance tasks include:

• Engine oil and filter replacement

• Tyre pressure and rotation

• Brake inspections

• Fluid top-ups (coolant, transmission, brake fluid)

• Battery checks

• Air filter replacement

These routine services keep your car running efficiently and prevent major issues. Unfortunately, many car owners delay or skip these essentials because of widely believed car maintenance myths. Regular maintenance is the easiest way to avoid unexpected breakdowns and costly car repair bills.

Why Choose BCS Workshop for Your Car’s Maintenance Needs?

Choosing the right car service workshop is just as important as understanding what your car needs. BCS Workshop provides reliable servicing backed by modern diagnostic tools, experienced mechanics with over 7 years of experience, and a commitment to quality without unnecessary upselling.

Here’s why car owners trust BCS Workshop:

• VACC & IAME Accredited Expertise: Certified and accredited, our team follows manufacturer-recommended procedures to ensure your car receives top-quality care.

• Comprehensive Services for All Makes and Models: From routine logbook servicing to major repairs, fleet maintenance, and roadworthy certificates, we cater to a wide variety of vehicles, including Audi, BMW, Toyota, Mercedes, Ford, and more.

• Advanced Diagnostics and Genuine Recommendations: We use modern diagnostic tools to accurately identify issues, helping you avoid unnecessary repairs and make informed decisions.

• Flexible Payment Options: With Afterpay available, you can fix your car now and pay later, making essential maintenance accessible and stress-free.

• Transparent Communication: We explain every step clearly, ensuring you understand exactly what your car needs and why.

The focus is always on providing honest, practical guidance instead of unnecessary repairs, making it easier to stay on top of your car’s health.

Take Away

Understanding the truth behind these common car maintenance myths helps you make smarter decisions and avoid costly mistakes. Reliable information and regular servicing are the keys to keeping your vehicle safe, efficient, and long-lasting.

• Many car maintenance myths still mislead vehicle owners and should be avoided.

• Follow your manufacturer’s recommended service schedule, not outdated habits.

• Routine checks at a trusted workshop prevent unexpected breakdowns.

• Visual inspection isn’t enough; tyres, brakes, batteries, and filters need proper testing.

• DIY repairs can cause more damage than good without the right tools and knowledge.

• Visiting an experienced mechanical workshop ensures accurate diagnostics.

• For reliable car repairs, rely on experienced mechanics and verified information.

If you want quality car service, transparent recommendations, and expert support for all kinds of car repair needs, BCS Workshop is a reliable choice for everyday car owners across the area.

Contact our team to schedule your car maintenance.

Frequently Asked Questions