

🛢️ Drive Clean, Drive Confident: Engine Oil That Works as Hard as You Do
Castrol GTX 10W-40 A3/B4 is a high-performance 5-liter engine oil designed to deliver 50% cleaner engine operation with advanced sludge-busting technology. It meets stringent global standards including API SP and ACEA A3/B4, ensuring compatibility with a wide range of vehicles. Trusted by thousands with a 4.8-star rating, this oil offers optimal viscosity for smooth performance and long-lasting engine protection.





| ASIN | B0C812PDFW |
| Best Sellers Rank | 4,820 in Automotive ( See Top 100 in Automotive ) 106 in Car Engine Oils |
| Brand | Castrol |
| Customer Reviews | 4.8 4.8 out of 5 stars (698) |
| Date First Available | 14 Jun. 2023 |
| Item Weight | 4.39 kg |
| Item model number | dk-221 |
| Manufacturer | Castrol |
| Manufacturer part number | 15F8FC |
| Model | GTX |
| OEM Part Number | 10W 40, SAE Grade |
| Position | Driveline |
| Product Dimensions | 12.6 x 18.8 x 32 cm; 4.39 kg |
| Viscosity | 10W 40 SAE Grade |
P**D
Castrol oil
First class oil at competitive price.
A**E
Good product
Good product good price
I**S
Good quality
I bought an old classic Roll Royce - British engineering at its world class best - I wanted to make sure I used the correct best quality oil - this fits the bill.
D**S
Price
Excellent price
S**D
Castrol nothing more
Castol oil is ideal for my 90's vehicle
T**A
Value
Great online price!
K**D
Can’t go wrong with Castrol
Excellent product
R**X
NO PROBLEMS
Fast delivery. It's working for now, I'm using it and it's working fine. The car is still running (engine runs like a charm). I had a liter left for a refill. SR RUTEX
B**.
This was recommended to me for my Prius from 12 BC. My Prius thinks he is a Hummer in winter. Definitely recommend!
J**T
Schnelle und problemlose Lieferung, der Artikel war gut verpackt und wie beschrieben. Das Preis-Leistungs-Verhältnis passt und die Qualität ist gut. Insgesamt bin ich zufrieden und würde das Produkt wieder kaufen.
J**C
Muy bien, de precio y envío rápido
L**A
Perfetto consegna veloce
G**E
The classic oil. I use this on my V6 Audi. As the engine has done a few miles now, thinner oil is pointless and I find the slightly thicker 10W-40 oil reduces oil consumption. I have tried various oils including Shell, Repsol and Comma, all respected and high quality products but I have found this Castrol GTX to be the best all round but for a classic sportscar. The A3/B4 designation shows that it conforms to Audi-VW requirements.
Trustpilot
1 month ago
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