---
product_id: 257815526
title: "Castrol GTX High Mileage 5W-30 Synthetic Blend Motor Oil, 5 Quarts"
brand: "castrol"
price: "840.68 DT"
currency: TND
in_stock: true
url: https://www.desertcart.tn/products/257815526-castrol-gtx-high-mileage-5w-30-synthetic-blend-motor-oil
store_origin: TN
region: Tunisia
---

# Improves fuel economy Exceptional oil burn-off resistance Advanced engine wear protection Castrol GTX High Mileage 5W-30 Synthetic Blend Motor Oil, 5 Quarts

**Brand:** castrol
**Price:** 840.68 DT
**Availability:** ✅ In Stock

## Summary

> 🛢️ Keep your engine young and your ride smooth with GTX High Mileage!

## Quick Answers

- **What is this?** Castrol GTX High Mileage 5W-30 Synthetic Blend Motor Oil, 5 Quarts by castrol
- **How much does it cost?** 840.68 DT with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/257815526-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

- • **Burn Less, Drive More:** Oil burn-off protection exceeds industry standards, ensuring consistent lubrication
- • **Seal the Deal on Leaks:** Innovative seal conditioners minimize leaks, saving you costly repairs
- • **Fight Sludge Like a Pro:** Superior dispersancy keeps your engine cleaner, reducing harmful buildup
- • **Drive Smarter, Not Harder:** Formulated to improve fuel economy, giving you more miles per gallon
- • **Extend Your Engine’s Lifespan:** Phosphorus Replacement Technology protects emission systems for longer-lasting performance

## Overview

Castrol GTX High Mileage 5W-30 Synthetic Blend Motor Oil is engineered with advanced additives and Phosphorus Replacement Technology to protect emission systems, reduce sludge buildup, prevent leaks, and improve fuel economy. It meets or exceeds API SP/SN PLUS and ILSAC GF-6 standards, making it a reliable choice for high-mileage engines seeking extended life and superior performance.

## Description

GTX High Mileage 5W-30 Synthetic Blend Motor Oil, 5 Quarts

## 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 |
|---------------|-------|
| Manufacturer | Castrol |
| Brand | Castrol |
| Model | 03102 |
| Product Dimensions | 30.23 x 24.89 x 11.68 cm; 4.26 kg |
| Item model number | 03102 |
| Manufacturer Part Number | 03102C |
| Item Weight | 4.26 Kilograms |
| Viscosity | 5W 30 |

## Product Details

- **Viscosity:** 5W 30
- **Brand:** Castrol
- **Liquid volume:** 160 Fluid Ounces
- **Package information:** Bottle
- **Vehicle service type:** For use in vehicles with over 75,000 miles, Passenger cars, trucks, and SUVs

## Images

![Castrol GTX High Mileage 5W-30 Synthetic Blend Motor Oil, 5 Quarts - Image 1](https://m.media-amazon.com/images/I/610Gb0KlgtL.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.

## 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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**Shop now:** [https://www.desertcart.tn/products/257815526-castrol-gtx-high-mileage-5w-30-synthetic-blend-motor-oil](https://www.desertcart.tn/products/257815526-castrol-gtx-high-mileage-5w-30-synthetic-blend-motor-oil)

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*Product available on Desertcart Tunisia*
*Store origin: TN*
*Last updated: 2026-01-23*