# Castrol GTX 10W-40 Engine Oil 4L

**URL:** https://aio.lv/en/product--castrol-15f091--12505355
**Data updated:** 2026-06-10 09:23 (EEST)
**Category:** Car Supplies
**Manufacturer:** Castrol
**Manufacturer code:** 15F091
**EAN:** 2000510640602
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 33.49 €
**Prices and availability valid until:** 2026-07-15 23:59
**Price without VAT (21%):** 27.68 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--castrol-15f091--12505355

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 22.06.2026 | free |
| Pickup points | 29.06.2026 | 1.99 EUR |
| Courier delivery to door | 29.06.2026 | 4.99 EUR |

## Summary description

Castrol GTX 10W-40 is a premium engine oil designed to provide superior protection against sludge buildup and engine wear. This 4-liter pack is suitable for a wide range of gasoline and diesel engines, ensuring optimal lubrication and performance under various driving conditions. Its advanced formula helps extend engine life by maintaining cleanliness and thermal stability.

## Long description

Castrol GTX 10W-40 is a premium semi-synthetic engine oil engineered to provide reliable protection for passenger car engines. This 4-liter formulation is specifically designed to combat the formation of harmful sludge and minimize engine wear, ensuring that critical components remain clean and lubricated. By maintaining excellent thermal stability, this oil helps preserve engine performance and longevity across a variety of driving conditions.
Advantages
The primary benefit of using Castrol GTX 10W-40 is its advanced ability to prevent sludge buildup, which is a common cause of engine failure. Its semi-synthetic composition offers a superior balance between protection and efficiency compared to conventional oils. The oil maintains consistent viscosity and flow, providing reliable lubrication during cold starts and maintaining a protective film under high-temperature operating conditions, which significantly contributes to extending the overall service life of the engine.
Suitable for
Gasoline engines in passenger cars
Diesel engines in passenger cars
Vehicles requiring ACEA A3/B4 or API SL/CF specifications
Engines specifying MB-Approval 229.1 or VW 501 01 standards
When it may not be suitable
This oil may not be suitable for high-performance engines or modern vehicles that require specific low-viscosity synthetic oils, such as 0W-20 or 5W-30, as mandated by the manufacturer. Always consult your vehicle owner's manual to ensure the viscosity and performance standards match your engine's requirements.
Key specifications
Viscosity grade: 10W-40
Oil type: Semi-synthetic
Volume: 4 liters
Performance standards: ACEA A3/B4, API SL/CF
Manufacturer approvals: MB-Approval 229.1, VW 501 01
How to use
To use Castrol GTX 10W-40, first ensure the engine is turned off and has cooled down sufficiently. Locate the oil filler cap and the oil drain plug under the vehicle. Drain the old oil into a suitable container, replace the oil filter, and securely tighten the drain plug. Pour the required amount of new oil into the engine through the filler port, checking the level with the dipstick to ensure it reaches the manufacturer's recommended capacity. Dispose of the used oil at an authorized recycling facility.
What to consider before purchase
Verify the oil viscosity and performance standards in your vehicle owner's manual
Check the total oil capacity of your engine to ensure 4 liters is sufficient
Confirm compatibility with your vehicle's specific engine type
Usage recommendations: For optimal engine health, perform regular oil changes according to the intervals specified by your vehicle manufacturer. Avoid mixing this oil with products that do not meet the same performance standards to maintain the integrity of the lubrication system.

## FAQ

### How much does the Castrol GTX 10W-40 Engine Oil 4L cost, and is it available for purchase?

The price is 33.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 23 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 22.06.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All Castrol products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized Castrol service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

## Image

https://aio.lv/img/cache/product/12505355/68846198_large.webp