Everything You Need to Know About Engine Oil: Types, Tips, and How to Choose the Right One

Your car’s engine is a finely tuned machine, and engine oil is what keeps all its moving parts running smoothly. Think of it as the...

August 6, 2025 7 min read Team Motorhub
Close-up shot of a hand pouring motor oil from a gray plastic bottle into a car engine

Your car’s engine is a finely tuned machine, and engine oil is what keeps all its moving parts running smoothly. Think of it as the lifeblood of your vehicle. Whether you’re driving in cold climates or hot desert roads, the right motor oil plays a crucial role in keeping your engine clean, cool, and protected.

In this guide, we’ll break down the different types of engine oil, when to change it, what the labels mean, and how to choose the best one for your car.

Why Engine Oil Matters

Engine oil lubricates the engine’s components, reducing friction and preventing wear. It also helps cool the engine by carrying heat away from moving parts, traps dirt and metal particles, and prevents the formation of sludge. Without proper oil or regular changes, engines can overheat or suffer costly damage.

If your oil warning light comes on, if you notice a burning smell, or if the engine feels rough even before your next scheduled service get the oil checked immediately.

Types of Engine Oil Explained

There are three main types of motor oil available:

1. Conventional Oil

Made directly from refined crude oil, conventional oil has been around for decades. It provides basic engine protection and is typically more affordable. However, it breaks down faster under high temperatures and often lacks modern detergents, which help prevent sludge buildup.

Best for: Older vehicles or low-mileage engines that aren’t driven under severe conditions.

2. Synthetic Oil

Unlike conventional oil, synthetic motor oil is engineered in laboratories. It offers superior performance, better thermal stability, and a cleaner engine. It also lasts longer between oil changes and may even improve petrol usage slightly due to reduced engine friction.

Best for: Modern engines, high-performance vehicles, extreme climates, and drivers who want long-term protection.

3. Synthetic Blend Oil

As the name suggests, this is a mix of conventional and synthetic oils. It gives you some of the benefits of synthetic oil like better resistance to oxidation and heat at a more affordable price.

Best for: Budget-conscious drivers who still want improved performance and protection.

Understanding Oil Viscosity

You’ve probably seen labels like 5W-30 or 10W-40 on oil containers. This represents the oil’s viscosity, or thickness:

Thinner oils flow more easily in cold weather, while thicker oils provide better protection at higher temperatures. Always follow your manufacturer’s recommended oil grade to avoid engine issues.

How Often Should You Change Engine Oil?

Most modern vehicles can go 8,000–15,000 km between oil changes, especially with synthetic oils. However, the right interval depends on:

Check your owner’s manual for specific recommendations, and consider changing oil sooner in extreme climates or heavy usage scenarios.

How to Choose a Quality Engine Oil

When shopping for oil, look beyond the price tag. Here’s what to look for:

Stick with reputable brands like Mobil 1, Castrol, Valvoline, or Shell. Avoid unfamiliar ultra-budget brands, especially if you’re unsure about their certifications.

Practical Tips for Car Owners

Final Thoughts

Using the right engine oil and changing it on time can extend your engine’s life, improve petrol usage, and save you from expensive repairs down the road. Whether you go with conventional, synthetic, or a blend, always stick to your manufacturer’s recommendation and choose a certified product.

Need an oil change, filter replacement, or engine health check? Book your service with MotorHub today. We offer expert care for all car brands, including premium oil servicing tailored for the UAE’s unique driving conditions.

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