Instant Car Warranty Quote!
Enter your Registration Number for an online quote today!
Instant Car Warranty Quote!
Enter your Registration Number for an online quote today!

Motor Oil is Essential for a Healthy Engine

Why Motor Oil is Essential For a Healthy Engine

While your car’s engine might seem incredibly complex, it’s actually a surprisingly simple piece of machinery. Today’s cars include a huge amount of technology, but the fundamentals of their engines haven’t changed that much in the last 50 years.

how often should you change your motor oil
Motor oil keeps your engine’s moving parts cool and reduces friction and wear.

The basic function of an engine is simple: using petrol, a hugely concentrated fuel that’s capable of producing lots of energy, a car’s engine creates thousands of tiny, controlled reactions every minute to create motion and propel your car forward.

Car engines involve hundreds of moving parts, both small and large. There’s also a huge amount of friction going on inside the average car’s engine, with strong metal components working together constantly to produce momentum.

Because of this, your car’s engine needs a lubricant to help ensure its components can move smoothly together. This is where engine oil comes into the equation as a vital lubricant that keeps your car’s engine operating as smoothly as possible.

What does motor oil do?

In many ways, motor oil is your car’s lifeblood. It’s the single component that has a greater effect on your engine’s health and longevity than anything else – one of the essentials of motoring that, when forgotten, has serious consequences for your car.

Motor oil does several things, but its most important job is preventing the various metal components inside your car’s engine from rubbing against one another and producing wear and tear.

The components that make up your car’s engine are strong and durable, but they’re also surprisingly delicate when in operation. A lack of oil can lead to them grinding up against each other, causing cracks to develop and destroying your car’s engine.

As well as lubricating your engine’s moving parts, motor oil also performs a cooling role. Engines produce a lot of heat, especially when pushed to their limit – heat that motor oil absorbs in order to cool the moving parts in your car’s engine.

Motor oil also plays a role in cleaning your engine by removing the substances that are created when fuel is burned, preventing the internals of your car’s engine from becoming worn down and inefficient.

Why motor oil needs to be replaced

When is your car’s next oil change due? It’s important to keep track of your car’s oil condition, especially if you drive your car often or frequently work its engine on the track or on the highway.

When motor oil isn’t replaced on time, an oily sludge known as “black death” – not that black death, but an automotive-related one – can cause your engine to become less efficient and, in some cases, even seize.

In the early 1980s, car engines had developed rapidly, outpacing the development of suitable motor oils. Newer, more powerful engines pushed motor oil to its limits and many vehicles suffered serious breakdowns and engine problems.

Thanks to the oil-related engine problems that affected many cars in the 1980s, the motor oil of today is available in a variety of different quality grades, each designed for a different type of engine.

Failing to replace your car’s oil on type might not give it the black death, but it could lead to a huge range of reliability issues. If your oil is severely overused, it may even result in your car’s engine seizing, requiring extremely expensive repairs.

How often should you change your car’s motor oil?

The longer your car goes without an oil change, the dirtier and less effective its oil will become. Over time, your car’s engine oil will pick up dirt, dust and other types of grit that make their way into your engine, dramatically increasing its viscosity.

This makes it far less effective as an engine lubricant and as a core component of your engine’s cooling system. Leave your oil change too late and your car’s motor could very well seize up on you while you’re driving.

how often should you change your motor oil
The Tire Zoo / CC 2.0

Luckily, it’s extremely easy – and extremely affordable – to change your motor oil and keep your car’s engine clean. Your car’s handbook will provide a mileage guide to help you know exactly when it’s time to change your car’s oil.

With most vehicles, you’ll want to get your car’s oil replaced every 3,000 to 5,000 miles. Sports cars might require more frequent oil changes, especially if you drive them to their limit and keep the engine operating at high RPMs.

Likewise, if you drive your car in extremely hot or cold weather – for example, in a tropical climate or through winter snow – you’ll put a greater strain on its engine, requiring more frequent oil changes.

Which type of motor oil should you choose?

There are lots of different motor oils on the market, from synthetic oils to motor oils of all different weights and standards. Using the right oil will give your car the best combination of performance, reliability and protection.

If you’re unsure of which oil is right for you, check your car’s manual to see which oil the manufacturer recommends. Your car’s manufacturer will list the right oil weight and the right type of oil, making it easy to pick a reliable choice.

If you drive your car in a particularly hot or cold climate, ask the shop assistant for advice on the best oil weight for your car. The properties of oil change based on its average temperature, making weight a big factor in your car’s performance.

Finally, consider using synthetic motor oil instead of standard motor oil if you’d like to minimise your car’s oil replacement needs. Synthetic oil usually lasts longer than standard motor oil, letting you replace it less without fear of your engine seizing.

See the oil warning light? Act quickly to avoid engine damage

Oil is your car’s lifeblood – an essential component that keeps it running smoothly, safely and reliably. Changing your oil late might save you money now, but it could cost you a huge amount later when your engine starts to deteriorate.

If your car is nearing its oil change interval or you’re starting to see its oil warning light, take it to your local mechanic and ask to have its oil changed to make sure its engine stays in great condition for years to come.


Protect yourself from the cost of expensive car repairs

Would you like to protect yourself from the cost of expensive car repairs? If your car’s manufacturer warranty has expired, an extended warranty could be exactly what you need to keep the cost of car ownership predictable and affordable.

Thanks for reading. Make sure to stay tuned to the Warrantywise blog, Facebook and Twitter for more great content throughout 2015!

Leave a Reply

Your email address will not be published. Required fields are marked *

Plan Cover Levels

04/40 Cover Level
06/60 Cover Level
08/80 Cover Level
10/100 Cover Level
12/120 Cover Level
Get a Used Car Warranty Quote Today!
Get an instant quote online by entering your car registration number above. Alternatively, call a member of our team today on the number below.
0800 001 4990
5 Petre Court, Petre Road, Clayton-le-Moors
Lancashire, BB5 5HY

Email Address:
Freephone: 0800 001 4990
Fax: 01254 301 399
Or call us on freephone:
0800 001 4990

Copyright © 2015 Warrantywise. All rights reserved.

Warranty Wise and Warranty Wise Logo are trademarks of Warrantywise. The website "" and contents herein are for information purposes only. This does not form part of any contract of protection. Any and all Warranty Plan confirmation including Warranty Plan Documents and Application Forms will be issued upon purchase. It is important that you read our information supplied and then make your own choice of warranty cover together with any plan additions that you may need as a vehicle owner who demands to ensure that your vehicle warranty requirements are met now and in the foreseeable future. Terms & Conditions apply provided by Warranty Wise and also available to view here warranty plan terms Tel 0800 169 7880. Warrantywise VAT registration number 994 0914 85 all prices and monetary figures quoted include VAT at the current rate.