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Castrol MAGNATEC 5W-30 A5 Car Engine Oil, 20 Litres
£168.73
In stock
Ensure ultimate engine health and longevity with Castrol MAGNATEC 5W-30 A5 Car Engine Oil. This high-performance, cost-effective 20 Litre bulk synthetic oil uses intelligent molecules that cling to parts, drastically reducing wear during the critical warm-up phase and maximizing efficiency and fuel economy for modern gasoline and diesel engines.
- Instant protection from the moment you start the engine.
- Advanced full synthetic 5W-30 A5 formulation for peak performance.
- Intelligent molecules reduce engine wear by up to 75% during warm-up.
- Large 20 Litre pack size offers professional value and convenience.
In stock
Shipping & Delivery
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Courier delivery under £30
Our courier will deliver to the specified address
2-3 Days
From £4.99
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Prime delivery
Our prime courier will deliver to the specified address
1-2 Days
From £12.99
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Manufacture Warranty 1 Year
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Free 30-Day returns





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Product Description
Ultimate Engine Protection: Castrol MAGNATEC 5W-30 A5 Car Engine Oil, 20 Litres – Lock in Longevity and Peak Performance
Invest in superior engine health with the high-performance Castrol MAGNATEC 5W-30 A5, now available in a cost-effective 20 Litre bulk container. Engineered with intelligent molecules that cling to critical engine parts like a magnet, this oil provides an instant layer of protection from the moment you turn the key, drastically reducing wear during warm-up—when up to 75% of engine wear occurs. This advanced synthetic technology is specifically formulated for modern automotive gasoline and diesel engines requiring a 5W-30 A5 specification, ensuring maximum efficiency, fuel economy, and sustained power output even under severe driving conditions. Choose MAGNATEC A5 to keep your engine running stronger for longer.
Key Features
- Clings to engine parts, providing instant protection from start-up.
- Significantly reduces engine wear during the critical warm-up phase.
- Full synthetic formulation ensures high performance and longevity.
- Contributes to improved fuel economy (Fuel Economy A5 specification).
- Large 20 Litre pack size offers excellent value and convenience for professional use or frequent oil changes.
Important Information
- Pack size: 1 x 20 Litres.
- Meets or exceeds specifications: ACEA A1/B1, A5/B5; API SN; ILSAC GF-5 or earlier 5W-30 specifications.
- Ideal for use in a wide range of automotive gasoline and diesel engines.
- Always check your vehicle handbook for the correct oil grade and specification.
Why Choose Think Assemble
- Quality Assurance: We only supply genuine, manufacturer-sourced engine oils and automotive products.
- Fast Shipping: Get your 20 Litre container quickly with our dedicated courier service.
- Expert Support: Our team is ready to assist with any product inquiries or compatibility questions.
- Competitive Pricing: Premium oil at bulk pricing delivers exceptional long-term savings.
Specification
Overview
| Brand | Castrol |
|---|---|
| Manufacturer | Castrol |
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12 reviews for Castrol MAGNATEC 5W-30 A5 Car Engine Oil, 20 Litres
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Road runner –
Castrol Magna tec.
At 1st I was a little sceptical but used this oil in 3 different good motorway cruise’s I’ve owned. This oil has not just improved the feel performance, idling and accelerating but Cold starts and some minor rattles have disappeared. Better warm ups and fuel economy much improved. Noticing the price for 20 ltr it was a no brainer. also not needing to top up as much means an additional saving.
Frustrated shopper –
Castro’s Magnatec 5W30
I have used Castrol oil products all my life as it was recommended to me by my dad who was an engineer/fitter.
Using the oil to service a small 1.0 litre engine with 137,000+ miles on the clock, no problems and a more modern 1.6 litre engined car, also with no problems
Ged120 –
Incorrect oil delivered.
The incorrect oil was sent. It was not stop start version but standard 5w 30. I am currently awaiting collection and replacement which has so far been in the region of 10 days.
Anonymous –
Great value.
Great value bulk purchase, well packaged, good delivery.
Now then –
Second purchase of this product
Great price for this product, ideal if you own 2 cars.
John A –
20 litre castrol magnatec 5 30
Great quality oil at a great price what’s not to like?
Anonymous –
Great purchase
Excellent oil for a very good price
Sharpies –
Castrol oil
Quality oil at the best price
allanl –
Castrol oil.
Great bargain very pleased.
jim ramsay –
Good Brand at good price
Better oil was recommended
Db5gold –
Best buy.
Excellent oil and an excellent price.
Mrjono –
Oil
Great oil and a great price