Protect your car from harmful sludge with Castrol GTX 10W-40 a3/B4, which contains anti-sludge formula that provides 25a better sludge protection compared to tough industry standards.*
Liquid Engineering protects against problems that your engine faces every day.
* Vs aPI SL /or aCEa a3/B4 Industry standards
- aCEa a3/B4
- aPI SL/CF
- MB-approval 229.1
- VW 501 01