---
product_id: 137028145
title: "CASTROL GTX High Mileage 5W-30 Synthetic Blend Motor Oil 4.73 Litres NEW"
brand: "castrol"
price: "541 kr"
currency: DKK
in_stock: true
reviews_count: 5
url: https://www.desertcart.dk/products/137028145-castrol-gtx-high-mileage-5w-30-synthetic-blend-motor-oil
store_origin: DK
region: Denmark
---

# Exceptional Oil Burn-Off Protection Phosphorus Replacement Tech for Emission Life 5W-30 Synthetic Blend Viscosity CASTROL GTX High Mileage 5W-30 Synthetic Blend Motor Oil 4.73 Litres NEW

**Brand:** castrol
**Price:** 541 kr
**Availability:** ✅ In Stock

## Summary

> 🛠️ Drive smarter, last longer — the high-mileage oil your engine deserves!

## Quick Answers

- **What is this?** CASTROL GTX High Mileage 5W-30 Synthetic Blend Motor Oil 4.73 Litres NEW by castrol
- **How much does it cost?** 541 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.dk](https://www.desertcart.dk/products/137028145-castrol-gtx-high-mileage-5w-30-synthetic-blend-motor-oil)

## Best For

- castrol enthusiasts

## Why This Product

- Trusted castrol brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Leak Defender:** Advanced seal conditioners reduce leaks, saving you costly repairs and downtime.
- • **Sludge Fighter:** Superior dispersancy formula actively combats sludge buildup, ensuring peak engine performance mile after mile.
- • **Fuel Economy Enhancer:** Optimized additives improve fuel efficiency, putting more miles in your tank and less in the pump.
- • **Engine Longevity Booster:** Phosphorus Replacement Technology extends emission system life, keeping your engine cleaner and greener.
- • **Industry-Leading Standards:** Meets or exceeds API SP/SN PLUS and ILSAC GF-6 specs, trusted by Ford and top manufacturers.

## Overview

CASTROL GTX High Mileage 5W-30 Synthetic Blend Motor Oil (4.73L) combines advanced Phosphorus Replacement Technology and superior dispersants to protect engines from sludge and wear. Designed to reduce leaks with seal conditioners and improve fuel economy, it meets rigorous API SP/SN PLUS and ILSAC GF-6 standards, making it the go-to choice for professional-grade engine care and extended vehicle life.

## Description

CASTROL GTX High Mileage 5W-30 Synthetic Blend Motor Oil 4.73 Litres NEW

Review: Bien
Review: Great oil. Good price.

## Features

- Phosphorus Replacement Technology helps extend emission system life
- Superior dispersancy that fights sludge build up
- Exceptional oil burn-off protection exceeding industry standards* | Seal conditioners to help reduce leaks
- Advanced additives that help prevent engine wear | Improved Fuel Economy**
- Meets or exceeds the following specifications: API SP/SN PLUS/SN/SM | ILSAC GF-6 | Meets Ford WSS-M2C946-B1 | Meets Ford WSS-M2C961-A1 | * Based on API and ACEA volatility specifications | ** In 5W-20, 5W-30 and 10W-30 grades versus industry specifications

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00GSQ8MSC |
| Brand | Castrol |
| Customer Reviews | 4.8 4.8 out of 5 stars (7,241) |
| Date First Available | 17 July 2015 |
| Item Weight | 4.26 kg |
| Item model number | 03102 |
| Manufacturer | Castrol |
| Manufacturer part number | 03102C |
| Model | 1 |
| Product Dimensions | 30.23 x 24.89 x 11.68 cm; 4.26 kg |
| Viscosity | 5W-30 |

## Product Details

- **Brand:** Castrol
- **Liquid volume:** 160 Fluid Ounces
- **Package information:** Bottle
- **Vehicle service type:** Car
- **Viscosity:** 5W-30

## Images

![CASTROL GTX High Mileage 5W-30 Synthetic Blend Motor Oil 4.73 Litres NEW - Image 1](https://m.media-amazon.com/images/I/610Gb0KlgtL.jpg)
![CASTROL GTX High Mileage 5W-30 Synthetic Blend Motor Oil 4.73 Litres NEW - Image 2](https://m.media-amazon.com/images/I/613dUU465eL.jpg)
![CASTROL GTX High Mileage 5W-30 Synthetic Blend Motor Oil 4.73 Litres NEW - Image 3](https://m.media-amazon.com/images/I/61B3hQouoLL.jpg)
![CASTROL GTX High Mileage 5W-30 Synthetic Blend Motor Oil 4.73 Litres NEW - Image 4](https://m.media-amazon.com/images/I/61FuAFcMoiL.jpg)
![CASTROL GTX High Mileage 5W-30 Synthetic Blend Motor Oil 4.73 Litres NEW - Image 5](https://m.media-amazon.com/images/I/61m3FgEywcL.jpg)

## Questions & Answers

**Q: What is the shell life of motor oil**
A: If it does sit for a few months make sure you shake the bottle well the night or day before the oil change so as to mix up the additive pack that might have settled while sitting and waiting. It suspends well for a month or 2 but after that the add pack might end up at the bottom of the bottle and that wouldn't be good. You really want those additives working in your engine.

**Q: how long time that oil last for chevrolet cobalt lt 2009 has 130.000 miles ?**
A: I have a 2009 Cobalt. I change my oil when the indicator comes up on the dash. Usually within the time frame of 5 -1 % of life left. My Cobalt has almost 200,000 miles on it. The computer actually knows when the oil needs changed. How? The computer calculates the length of time the car runs, temperatures the car is exposed and more. In effect, the computer knows when the oil is losing it's level of viscosity. Viscosity = Sticky. Oil needs to be sticky to cling to the internal parts of the engine. Again, oil must be sticky to be protect the engine. Trust me, the car's computer knows. The only way the car doesn't know is if you don't start it and or you don't drive it.  In that case, you would need to change the oil far more often.  The worst effect any engine deals with is not being run. Second worst is starting the car and not allowing the engine to reach normal operating temperatures. Start the car and drive it. Doing so causes the moisture in the oil to be burned off. Moisture in the crankcase causes internal rust. Internal rust can damage the crank bearings. I have 4 GM cars. They all have high mileage. Let the car tell you when to change the oil. Btw, I use this oil in all my cars. It's among the best.

**Q: synthetic or conventional?**
A: This is a full synthetic in its current form. Previous incarnations were a blend.

**Q: Is this full synthetic or synthetic blend? It's listed under both categories in your homepage.**
A: THIS PRODUCT IN 5W-20 IS A SYNTHETIC BLEND. CALLED CASTROL 12/12/19. THEY NO LONGER MAKE CONVENTIONAL FORMULA FOR THIS WEIGHT. ANY QUESTIONS, CALL 888-227-8765.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by C***R on 11 May 2025*

Bien

### ⭐⭐⭐⭐⭐ Review
*by J***. on 17 January 2026*

Great oil. Good price.

### ⭐⭐⭐⭐⭐ Review
*by M***Y on 12 December 2022*

Been using Castrol Products for years in Racing cars and Every day use vehicles. No issues and Castrol has a distinctive smell at the Race Track.

## Frequently Bought Together

- Castrol GTX High Mileage 5W-30 Synthetic Blend Motor Oil, 5 Quarts
- FRAM Extra Guard PH4967, 10K Mile Change Automotive Replacement Interval Spin-On Engine Oil Filter for Select Vehicle Models

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*Product available on Desertcart Denmark*
*Store origin: DK*
*Last updated: 2026-01-22*