Castrol MAGNATEC 5W-30 A3/B4
Non-stop protection from every start.


Prices exclude VAT. Delivery for 200L + Free of Charge to UK Mainland postcodes.

Pack sizes available to buy: 12x 1ltr, 4x 4L

Select Packs size from drop down menu to see “pack size available” for prices.


Description of Castrol MAGNATEC 5W-30 A3/B4
Clinging molecules, reinvented.
Traffic congestion has increased dramatically; today even a normal driver can stop and start up to 18,000 times1 a year. That’s annoying, but worse, it slowly damages your engine – permanently.
Uniquely, Castrol MAGNATEC’s breakthrough DUALOCK molecules cling to critical engine parts and lock together to:

  • Form a powerful force field of protection
  • Dramatically reduce both warm-up2 and stop-start3 wear by 50%
  • Deliver unique patented protection designed specifically for modern driving

Non-stop protection from every start.
1 Global average from 50 cities, Castrol MAGNATEC STOP-START Index 2014 2 Tested versus the Sequence IVA API SN wear limit. 3 Tested versus the CEC OM646LA ACEA wear limits.


Application of Castrol MAGNATEC 5W-30 A3/B4
Castrol MAGNATEC 5W-30 A3/B4 is suitable for use in automotive gasoline and diesel vehicles where the manufacturer recommends and ACEA A3/B4, API SL or earlier specification 5W-30 lubricant.
Castrol MAGNATEC 5W-30 A3/B4 is approved for use in vehicles from leading manufacturers please refer to the specifications section and your owners handbook.

Castrol Magnatec 5w-30 A3/B4

  • Product Performance Claims
    ACEA A3/B4

    API SL

    MB-Approval 229.3

    Renault RN 0700 / RN 0710

    VW 502 00 / 505 00