Keeping your car’s engine oil in optimal condition is an essential part of regular car maintenance. Understanding the importance of timely oil changes can help you avoid costly damage, and ensure your vehicle performs at its best whenever you're on the road.
Here’s some helpful information on how often you should change your car's oil, why regular oil changes are essential, signs to watch out for, and practical tips to prevent an expensive visit to the mechanic.
When in doubt, check the manual
When it comes to determining the oil change schedule and the type of oil suitable for your car, here’s why the best place to start is your vehicle's service manual:
Manufacturer recommendations — the service manual outlines the oil change intervals recommended by the manufacturer. These intervals are based on extensive testing and engineering expertise, ensuring the best performance and longevity for your vehicle's engine.
Customised guidelines - every car is unique, and the service manual provides information specific to your make and model. It may include variations based on factors like engine size, fuel type, and additional features or options that affect maintenance requirements. The type of use, such as repeated short trips will also have a bearing on the frequency of recommended oil change intervals.
Oil specifications - the service manual specifies the type of oil that best suits your car's engine. It will recommend a particular viscosity grade (e.g.,0W-20, 5W-30 or 10W-40) and provide guidance on whether to use conventional, synthetic, or a blend of oils.
5 important signs to look out for
Keep an eye out for the following indicators, sounds, and visual cues that indicate your car’s oil needs changing:
1. Dashboard Warning Lights
If you see an illuminated oil can or an alert indicating low oil pressure on your car’s dashboard, it's a clear signal that you should check your oil level and consider an oil change. Act quickly by checking the oil level, topping it up or booking it in to a service centre that knows your car best.
2. Engine Noise
Listen for unusual engine noises, such as knocking, ticking, or rumbling sounds. When the engine oil becomes old and contaminated, it loses its lubricating properties, leading to increased friction and wear on the engine components. When changing the oil, a qualified mechanic can also check there are no other issues with your vehicle.
3. Low Oil Level
Periodically check your car's oil level using the dipstick under the hood. If you notice that the oil level is consistently low, it could be a sign of leaks or excessive oil consumption. In these cases, it's crucial to address the issue quickly, before causing any permanent damage.
4. Oil Colour and Consistency
Healthy engine oil should have a transparent, amber colour. If the oil appears dark, dirty, or sludgy, it's an indication that it's time for a change. Additionally, if you notice particles or debris in the oil, it may signify internal engine problems that require immediate attention.
5. Oil Spills or Puddles
Keep an eye on the ground wherever you park your car. Oil leaks often leave noticeable stains or puddles under the engine area. If you notice any oil spills, it's essential to investigate and address the source of the leak quickly. Regular oil changes can help prevent leaks by prolonging the life of gaskets and seals.
What happens when you don't regularly check
Neglecting regular oil changes can have detrimental effects on your car's engine and lead to costly repairs down the line. Here are some of the potential consequences of not changing your car's oil regularly:
Engine wear and tear - over time, oil breaks down and loses its lubricating properties. Without proper lubrication, the engine's moving parts, such as pistons, valves, and bearings, experience increased friction and wear. This can result in decreased engine performance, reduced fuel efficiency, and even engine failure.
Sludge buildup - as oil ages, it can build up dirt, debris, and corrosive contaminants. Over time, these impurities can form sludge, a thick, gel-like substance that can clog the engine's oil passages, restrict proper lubrication, and disrupt the cooling system. This can lead to engine overheating, decreased performance, and potential damage to critical engine components.
Lower fuel efficiency - inadequate lubrication from old or insufficient oil can increase the engine's friction and workload. This can result in reduced fuel efficiency, forcing your car to burn more fuel to perform the same tasks. Over time, this can lead to spending more at the pump due to higher fuel consumption
Expensive engine repairs - ignoring oil change intervals and engine maintenance could eventually lead to issues like worn-out bearings, damaged camshafts, bent valves, or even a seized engine. Repairing or replacing these components can be extremely costly and you could end up needing a complete engine overhaul.
Tips to Avoid Costly Damage
Taking care of your car's engine through regular oil changes is a small investment that pays off in the long run. Here are some tips to help maintain engine health, improve fuel efficiency, and extend the overall lifespan of your car:
- Follow the recommended oil change schedule outlined in your service manual.
- Use high-quality oil that meets the manufacturer's specifications, and stick to regular oil change intervals to prevent sludge and corrosive buildup.
- Use high-quality oil filters to trap contaminants effectively.
- Pay attention to any signs indicating the need for an oil change and don’t wait to address them.
- Conduct routine inspections and services, including checking for leaks and monitoring fluid levels.
By prioritising this essential maintenance task, you can protect your car's engine and enjoy the benefits of a well-maintained vehicle for years to come.
For more insights check out our blog and if you are considering a new set of wheels, download our Ultimate Guide to Buying a New Car.
