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Performance Engine Oils
Castrol MAGNATEC Professional A3 10W-40 Engine Oil

Castrol MAGNATEC Professional A3 10W-40 Engine Oil


Castrol Magnatec Pro A3 10W40 - 1 Litre

1 Litre


Castrol Magnatec Pro A3 10W40 - 4 Litres

4 Litres


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  • Description
  • Specifications
  • Shipping Explained

Castrol MAGNATEC Professional A3 10W-40 Engine Oil

Castrol Magnatec Professional's intelligent molecules protect from the moment you start. They cling to the engine like a magnet providing an extra layer of protection, dramatically reducing engine wear. 

Castrol Magnatec Professional's unique formulation delivers protection you can see, hear and feel. It is now certified CO2 neutral according to the highest global standards. 

Engineered with Micro-Filtration in order to meet Castrol Professional's new quality standard and verified using Castrol's new Optical Particle Measurement System (OPMS) to guarantee product quality. 

Castrol Magnatec Professional - Instant Protection From The Moment You Start. 

Castrol Magnatec Professional A3 10W-40 is a part synthetic lubricant

  • Cling to critical engine parts when the oil drains down
  • Cling to your engine forming an extra layer that protects from the moment you turn the key;
  • Bond to metal surfaces to make engine parts more resistant to wear;
  • Provide continuous protection for all driving conditions, styles and temperatures.
Castrol MAGNATEC Professional A3 10W-40 is suitable for use in automotive gasoline and diesel engines where the manufacturer recommends an ACEA A3/B4, A3/B3, API SL/CF or earlier specification 10W-40 lubricant. 

Castrol MAGNATEC Professional A3 10W-40 is approved for use in vehicles where a VW 502 00 / 505 00. MB-Approval 226.5 / 229.1 specification 10W-40 lubricant is required.

PDF Downloads:

Download the Technical PDFDownload the Safety PDF


  • ACEA A3/B3, A3/B4
  • API SN
  • MB-Approval 226.5
  • Renault RN 0700 / RN 0710
  • VW 501 01/ 505 00
  • Meets - Fiat 9.55535-D2 /9.55535-G2


SHIPPING IS FREE* for orders of £75 and over , regardless of the weight of your order.
We've tried to keep all other shipping costs as low as we can.

Carriage starts at just £0.95 (inc VAT) for small items, with our most common courier rate set at £5.99 for orders of 5kg (enough for 5 litres of oil).

  • *Free shipping is available for UK Royal Mail, UPS Access Point™ (click & collect) and standard UK courier services (not express / priority / islands).
  • Courier surcharges mean we are unable to offer free "to the door" courier shipping from us in Cornwall up to Highlands / Grampian in Scotland - and because we send a lot of liquids, not every courier option is available to us. UPS Access Point™ (click & collect) is available as a free shipping option across Scotland, Wales and England, wherever there is a UPS Access Point™ Location.
  • Carriage charges are based on weight - please see our table of carriage costs for full details (although adding an item to your cart and viewing the calculated carriage is often easier!).
  • Priority shipping is also available.

How long will it take to get my order?

We give an estimate of delivery dates as you shop and in your basket. The vast majority of items are held in stock and dispatched from our UK warehouse and we'll do all we can to get your order to you as quickly as possible.

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Brand: Castrol
Oil Type: Semi Synthetic