

🛢️ Keep your engine running smoother, longer — because your ride deserves the best!
Castrol GTX 10W-40 A3/B4 Engine Oil is a premium synthetic blend designed for both gasoline and diesel engines. With a high flash point of 200°C and compliance with ACEA A3/B4, API SP, and major OEM approvals (MB, VW, Renault, Fiat), it delivers superior protection against sludge, wear, and oil burn-off. Ideal for high-mileage and newer engines alike, this 1L bottle offers a perfect balance of performance, reliability, and convenience.





| ASIN | B0C8135NT3 |
| Best Sellers Rank | 5,526 in Automotive ( See Top 100 in Automotive ) 111 in Car Engine Oils |
| Brand | Castrol |
| Brand Name | Castrol |
| Compatible with Vehicle Type | Car, Truck |
| Container Type | Bottle |
| Country Of Origin | United Kingdom |
| Customer Reviews | 4.7 out of 5 stars 249 Reviews |
| Flash Point | 200 Degrees Celsius |
| Flash point | 200 Degrees Celsius |
| Included Components | Car Engine Oils |
| Item Type Name | Car Engine Oils |
| Item Weight | 911 Grams |
| Liquid Volume | 1 Litres |
| Liquid volume | 1 Litres |
| Manufacturer | Castrol |
| Manufacturer Part Number | 15F8FE |
| Manufacturer Warranty Description | refer to Castrol website |
| Package information | Bottle |
| Unit Count | 1000.0 millilitre |
| Vehicle service type | Car, Truck |
| Viscosity | 10W 40 SAE Grade |
A**R
Good Oil
Good Oil For My Motorcycle
N**D
Reliable Engine Oil for Smooth Performance
I’ve been using Castrol GTX 10W-40 A3/B4 Engine Oil for a while now, and I’m really impressed with its performance. This oil is a great choice for keeping my engine running smoothly. It provides excellent protection against sludge and reduces oil burn-off, which is crucial for older engines like mine. The 1L bottle is the perfect size for top-ups or smaller oil changes, and the oil is easy to pour without making a mess. After using it, I noticed that the engine runs quieter and the performance feels more responsive. I also appreciate that it’s a trusted brand like Castrol, which has a solid reputation in the automotive world. This oil works great for both older, high-mileage cars as well as those with newer engines. My car is quite old now, with high mileage but has been running smoothly since the change, and I feel confident in the protection it offers against wear and tear. Overall, I highly recommend Castrol GTX 10W-40 A3/B4 Engine Oil for anyone looking to maintain or improve engine performance. It’s a great value and gives me peace of mind knowing that my engine is well-protected.
J**N
Best for Kia engine
Perfect for my Kia
J**W
Engine oil
Brilliant value
M**N
okay
okay
T**T
Oil
As described
D**S
Quality oil
Excellent quality product.
K**A
Perfect
Easily found for my car by using the filter on the search settings
Trustpilot
2 months ago
1 week ago