Castrol GTX is one of the world's most trusted motor oils. It's more than just oil. It's liquid engineering that protects against problems, like sludge, that your engine faces every day. Severe driving conditions such as every day stop-and-go/stop-start traffic, harsh weather conditions and extended drain intervals , can all cause the build-up of a thick, tar-like substance called sludge.
You can't see this sludge build-up but it can damage your engine's performance and cause premature engine failure. Protect your car from harmful sludge build-up with Castrol GTX.
GTX 15W-40 A3/B3 is suitable for use in automotive petrol and diesel engines where the manufacturer recommends an API SL/CF or ACEA A3/B3 15W-40 lubricant. GTX 15W-40 A3/B3 is also approved for use in VW group vehicles and Mercedes Benz vehicles that require a VW 501 01/ 505 00 or MB-Approval 229.1 15W-40 lubricant.
- Contains anti-sludge formula that provides 25% better sludge protection compared to tough industry standards*
- Superior protection against viscosity and thermal breakdown
Anti-wear additives that extend the life of your engine
- API SL, ACEA A3/B3
Approvals & Specifications
- ACEA A3/B3
- API SL/CF
- Meets Fiat 9.55535-D2
- MB-Approval 229.1
- VW 501 01/ 505 00
Standard Next Day Delivery - £5.99 (Mainland UK only)
FREE Standard Delivery on all orders over £75 (Mainland UK only)
Orders made before 2pm are usually sent next day but can take up to 72 hours.
*At this time we do not offer international shipping
30 day returns policy – You may return an item within 30 days at your own expense unless the item received is wrong or damaged.