Castrol Engine Oil

Your engine deserves the very best motor oil, and Castrol should be at the top of your list as it’s known as one of the finest producers of oils and lubricants in the world. You’ll find Castrol oil in everything from cars to vans and industrial machinery, helping extend your engine’s life while improving efficiency and power output.

Browse our range of genuine Castrol oils, or contact Cox Motor Parts for expert advice on choosing the perfect oil for your vehicle.

Out of Stock

Castrol Edge 0W-30 LL 1 Litre VW504/507 (15FEFB)
£10.12 VIEW PART
Out of Stock

Castrol Edge 0W-30 LL 5 Litres VW504/507 (15FEFC)
£49.99 VIEW PART
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Castrol Edge 5W40 Fully Synthetic Engine Oil 1 Litre
Original price was: £19.09.Current price is: £11.98.
Save 37% VIEW PART
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Castrol Edge 5W40 Fully Synthetic Engine Oil 5 Litres
Original price was: £65.34.Current price is: £49.99.
Save 23% VIEW PART
Out of Stock

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Castrol EDGE Longlife 5W30 LL Engine Oil 5 Litres (15F7E7)
£46.99 VIEW PART
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Castrol Edge Professional H 0W20 Fully Synthetic Engine Oil 1 Litre
Original price was: £19.09.Current price is: £13.99.
Save 27% VIEW PART
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Out of Stock

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Castrol Edge Professional H C2 0W30 Fully Synthetic Engine Oil 1 Litre
Original price was: £19.09.Current price is: £13.99.
Save 27% VIEW PART
Castrol EDGE Professional Longlife III 5W30 Engine Oil 5L (15F616)
£36.98 VIEW PART
Out of Stock

Castrol Edge Professional Longlife IV FE 0W20 LL Fully Synthetic Engine Oil 1 Litre (15F6D4)
£10.05 VIEW PART
Sale
Castrol Magnatec 0W30 Stop-Start C2 Fully Synthetic Engine Oil 1 Litre (15F6BF)
Original price was: £15.74.Current price is: £10.49.
Save 33% VIEW PART
Sale
Castrol Magnatec 0W30 Stop-Start C2 Fully Synthetic Engine Oil 4 Litres
Original price was: £52.27.Current price is: £31.99.
Save 39% VIEW PART
Cox Motor Parts Collapsible Silicone Funnel – Blue
£2.50 VIEW PART

About Castrol Car Engine Oil

With over a century of experience creating oils for different industries, Castrol’s oils can be trusted to keep your engine ticking over, whatever you drive, from Honda to BMW. Using their oils can help your car run to its best abilities, keeping your emissions low.

Modern engines face increasing demands with higher temperatures, pressures, and tighter tolerances. Castrol’s advanced additive technology creates a protective layer that stays strong even in these challenging conditions, preventing metal-to-metal contact and reducing friction for smoother operation.

Castrol’s innovative formulations don’t just lubricate but they also actively protect from engine wear, help maintain fuel economy, and can extend the time between services. Castrol car oil falls into two product ranges: Castrol Edge and Castrol Magnatec. At Cox Motor Parts, we stock both and can help you find the perfect Castrol motor oil for your Honda.

At Cox Motor Parts, we’ve spent years supplying quality engine oils for all types of vehicles. Our carefully selected range includes Castrol’s premium synthetic oils specifically formulated to keep your engine running smoothly, lasting longer, and performing at its peak.

How to Order Genuine Castrol Engine Oil Online

For over 100 years, Castrol has been at the forefront of lubricant technology, creating oils that deliver superior engine protection under even the most demanding conditions. As an authorised dealer at Cox Motor Parts, we offer only genuine Castrol products that help your engine perform at its best.

Find Your Oil Specification

Every engine has specific requirements for the best performance. Check your vehicle handbook for the recommended viscosity grade (like 5W-30) and quality standard (like ACEA A3/B4). Using manufacturer-recommended oil guarantees, your engine receives the right protection. If you’re unsure, check out our oil and fluid information guide, which shows which oil suits each Honda car model.

Select Your Castrol Oil

Once you know what your vehicle needs, shop our range of genuine Castrol oils to find the perfect match. Our technical team verifies every order before dispatch, giving you complete confidence in your purchase.

Change Your Engine Oil

Change your oil according to your manufacturer’s recommended intervals for best results. Make sure your engine is cool before starting, drain the old oil completely, replace the oil filter, and add the new Castrol oil to the correct level.

Castrol Engine Oil FAQs

Castrol Edge Engine Oil

Say goodbye to your fears about friction hotspots in your engine. Castrol Edge has been created with fluid titanium to transform its structure as it glides around your engine. This technology allows it to become stiffer at any point where the pressure drastically increases, making sure there’s a layer of oil to keep any pieces of metal apart. We stock Castrol Edge 5W40 oil in sizes from 1 litre to 4 and 5 litre bottles, as well as 0w30 and professional. These oils are designed to limit friction in your car’s engine through Castrol’s titanium technology.

At its strongest under high pressure
Minimises friction to maximise power
Meets the highest standards possible after stringent testing
Protects engine during entire drain interval
Reduces wear & tear
Improves fuel economy
Offers the best performance of any Castrol oil or lubricant

Castrol Magnatec Engine Oil

If you live in a city and are concerned about the wear and tear caused by warm-up and stop-start wear, Castrol Magnatec Oil could be exactly what you’re after. Designed for urban environments where you’ll be stopping and starting your car far more frequently, this fully synthetic oil has been developed and patented with DUALOCK technology to allow molecules to cling to critical engine parts to protect them. As an authorised Honda Dealer, Cox Motor Parts also specialises in genuine Honda oils and fluids that pass Honda’s stringent quality standards.

Perfect for both petrol and diesel engines
Forms a protective shield
Rreduces warm-up wear and stop-start wear

Castrol is one of the leading manufacturers of synthetic oils, and they’re perfect for modern engines. Here are a few of the reasons why we’re so keen on Castrol Engine Oil:

They use liquid engineering for optimal viscosity to keep your engines and parts safe
Optimised for stress points caused by all driving conditions
Castrol products are designed for high temperatures, low temperatures and stop-start city driving
Resists sludge while protecting your engine
Known for their quality oils and lubricants that deliver high-performance

While choosing the right oil for your engine may only feel like a small choice, Castrol engine oil is one of the safest investments you can make. They use the latest technology to engineer Castrol oils to enhance performance while offering maximum protection.

Choosing an oil that’s best for your driving needs and following the right change intervals is key for getting the most out of your car and the oils you use, regardless of brand. Castrol oils generally offer excellent engine performance, smooth running and help cars last for a long time, even if it’s a slightly older motor. Mobil 1’s oils offer lubricants to keep new engines in tip-top shape and help you drive them at peak performance. Either is a great choice for your automobile.

Castrol Engine Oil

Castrol Edge 0W-30 LL 1 Litre VW504/507 (15FEFB)

Castrol Edge 0W-30 LL 5 Litres VW504/507 (15FEFC)

Castrol Edge 5W40 Fully Synthetic Engine Oil 1 Litre

Castrol Edge 5W40 Fully Synthetic Engine Oil 5 Litres

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

Castrol Edge Professional H 0W20 Fully Synthetic Engine Oil 1 Litre

Castrol Edge Professional H C2 0W30 Fully Synthetic Engine Oil 1 Litre

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

Castrol Edge Professional Longlife IV FE 0W20 LL Fully Synthetic Engine Oil 1 Litre (15F6D4)

Castrol Magnatec 0W30 Stop-Start C2 Fully Synthetic Engine Oil 1 Litre (15F6BF)

Castrol Magnatec 0W30 Stop-Start C2 Fully Synthetic Engine Oil 4 Litres

Cox Motor Parts Collapsible Silicone Funnel – Blue