Quick Summary
Castrol GTX 5W 30 C4 Engine Oil 4L is a part synthetic engine oil for automotive gasoline and diesel engines where the manufacturer recommends an ACEA C4 5W 30 lubricant. It is listed with ACEA C4, MB Approval 226.51 and Renault RN 0720, and it is described as using sludge buster technology.
Who It Is Best For
This oil suits drivers who need a 5W 30 C4 lubricant for a compatible petrol or diesel engine. It is a practical choice for anyone looking for a recognised Castrol engine oil with the listed approval and specification details clearly stated.
What To Know Before You Buy
Check that your vehicle calls for ACEA C4 5W 30 before ordering. The product is described as part synthetic, and the 4L size may be suitable for topping up or servicing depending on your vehicle needs.
Pros: Clearly listed for gasoline and diesel engines where ACEA C4 5W 30 is recommended, with additional approval details shown.
Cons: You should confirm your exact engine requirement and selected oil grade before buying.
Common Buyer Questions
Is this suitable for petrol and diesel engines?
It is described as suitable for automotive gasoline and diesel engines where ACEA C4 5W 30 is recommended.
What specification does it meet?
The listed specifications are ACEA C4, MB Approval 226.51 and Renault RN 0720.
What type of oil is it?
It is described as part synthetic.
What size is the container?
The product size is 4L.
Does it have an expiry date?
It is stated that the item does not have an expiry date, and the date on the product is the manufacturer date.
Key Details
| Detail | What it means in use |
|---|---|
| Brand | Castrol |
| Product type | Engine oil |
| Viscosity grade | 5W 30 |
| Specification | ACEA C4 |
| Approvals | MB Approval 226.51 and Renault RN 0720 |
| Size | 4L |
| Oil type | Part synthetic |
| Use guidance | For automotive gasoline and diesel engines where ACEA C4 5W 30 is recommended |
Final Buying View
Castrol GTX 5W 30 C4 Engine Oil 4L is a straightforward option for drivers who need a part synthetic ACEA C4 5W 30 oil and want the listed approval details in one place. If your vehicle calls for this grade, it is worth considering.














