5W-30 Engine Oil

Looking for more 5W-30 Oils?

5w-30 engine oil is one of the most widely recommended oils for modern engines, offering a balance of protection, performance and fuel efficiency. Whether you’re doing routine maintenance or preparing for a long drive, choosing the right oil helps keep your engine running smoothly.

At Cox Motor Parts, we supply high-quality 5w-30 engine oils from trusted brands like Mobil, Castrol and Honda. Every oil we stock is fully synthetic and approved for use in a wide range of petrol and diesel engines, including those fitted with DPFs and turbochargers.

5W-30 Engine Oils

Why Choose 5W-30?

5w-30 oil is popular with manufacturers because it delivers great protection across a wide temperature range. The ‘5w’ means it performs well in cold starts, while the ’30’ gives solid protection when the engine is hot.

It also flows quickly through the engine to reduce friction and wear, improving fuel economy and helping extend engine life.

Modern 5w-30 formulations include advanced additives that keep the engine clean and help prevent buildup. Whether you’re commuting daily or doing long motorway drives, 5w-30 helps your engine stay in top shape.

At Cox Motor Parts, we stock genuine 5w-30 oil manufactured directly by Honda and 5w-30 engine oil from Castrol, Mobil, Millers, Shell and more! These are suitable for all types of cars, not just Honda! If you need another oil grade, we can help there, too, as we stock several different types.

How to Order the Right 5W-30 Oil

Match Your Specification

Check your vehicle handbook to confirm the correct oil grade and specification. You’re looking for something like “5w-30 ACEA C3” or similar.

Confirm Compatibility

Use our online vehicle lookup or enter your reg number at checkout. Our team checks every order before dispatch, so you can be confident you’re buying the right oil.

Get It Delivered

Choose your worldwide or UK delivery option and we’ll get your oil shipped quickly and securely.

5W30 Engine Oil FAQs

It depends on your vehicle and how you drive. 5w-30 is thinner at high temperatures, which helps improve fuel economy and is often recommended for modern engines. 5w-40 is thicker when hot, offering extra protection for older engines or high-performance driving. Always check your handbook or ask our team if you’re not sure.

You can if it meets the specifications in your vehicle handbook. Look for matching viscosity and industry approvals (like ACEA or API ratings). If you’re unsure, use our Honda oil and fluids information guide or contact us – we’ll make sure you get the right oil.

Right here at Cox Motor Parts. We stock fully synthetic engine oils from trusted brands like Mobil, Castrol and Honda. Every order is checked for compatibility, and we offer fast UK and international delivery.

You can use 5w-30 in some 4-stroke lawn mower engines, but always check the owner’s manual first. Mowers often need a different oil type or viscosity, so it’s best to confirm before adding anything.

Motor oil usually lasts 2-5 years if stored properly in a sealed container. Keep it in a cool, dry place away from sunlight. If the oil looks cloudy, smells odd, or has separated, don’t use it.

5W-30 Engine Oil

5W-30 Engine Oils

5W30 Genuine Honda Fully Synthetic Engine Oil | 1 Litre (08232P99C1LHE)

5W30 Genuine Honda Fully Synthetic Engine Oil | 4 Litres (08232P99C4LHE)

Castrol Edge 5W30 LL Fully Synthetic Engine Oil 1 litre 1L

Castrol EDGE Longlife 5W30 LL Engine Oil 5 Litres (15F7E7)

Castrol EDGE Professional 5W30 Longlife III Engine Oil 1 Litre

Castrol EDGE Professional Longlife III 5W30 Engine Oil 5L (15F616)

Mobil 1 ESP 5W30 Fully Synthetic Engine Oil 1 Litre

Mobil 1 ESP 5W30 Fully Synthetic Engine Oil 5 Litres (157295)