---
product_id: 7756979
title: "Transmax DEX/MERC Automatic Transmission Fluid, 1 Gallon"
brand: "castrol"
price: "KD 27.20"
currency: KWD
in_stock: true
url: https://www.desertcart.com.kw/products/7756979-transmax-dex-merc-automatic-transmission-fluid-1-gallon
store_origin: KW
region: Kuwait
---

# High-temp resistance up to 175°C Viscosity 4-6 cSt for smooth shifting Superior copper corrosion protection Transmax DEX/MERC Automatic Transmission Fluid, 1 Gallon

**Brand:** castrol
**Price:** KD 27.20
**Availability:** ✅ In Stock

## Summary

> ⚡ Shift into the future with Transmax – where performance meets protection!

## Quick Answers

- **What is this?** Transmax DEX/MERC Automatic Transmission Fluid, 1 Gallon by castrol
- **How much does it cost?** KD 27.20 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.kw](https://www.desertcart.com.kw/products/7756979-transmax-dex-merc-automatic-transmission-fluid-1-gallon)

## 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

- • **Ultimate Corrosion Defense:** Advanced formula guards against copper corrosion for longer transmission life 🛡️
- • **Precision Viscosity Control:** Optimized 4-6 cSt viscosity ensures silky smooth gear shifts every time ⚙️
- • **Unmatched Thermal Stability:** Keeps your transmission cool and efficient even under extreme heat 🔥
- • **Enhanced Friction Durability:** Delivers consistent, smooth performance to prevent wear and tear on your transmission parts 🔧
- • **Versatile Vehicle Compatibility:** One fluid fits a broad range of automatic transmissions, streamlining your maintenance routine 🚗

## Overview

Transmax DEX/MERC Automatic Transmission Fluid by Castrol is a premium 1-gallon fluid engineered with molybdenum disulfide calcium sulfonate for superior friction durability, high-temperature oxidation resistance up to 175°C, and exceptional copper corrosion protection. Its optimized viscosity (4-6 cSt at 100°C) ensures smooth transmission performance across a wide range of vehicles, making it the go-to choice for professional-grade automatic transmission maintenance.

## Description

Transmax DEX/MERC Automatic Transmission Fluid, 1 Gallon

## Features

- Enhanced friction durability for smooth transmission performance
- Superior high temperature protection to effectively resist oxidation
- Unsurpassed protection against copper corrosion
- Broad scope of vehicle applications improves workshop efficiency and inventory management

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Material | Molybdenum Disulfide Calcium Sulfonate |
| Brand | Castrol |
| Package Information | Bottle |
| Liquid Volume | 128 Fluid Ounces |
| Recommended Uses For Product | Automotive |
| Viscosity | 4 to 6 cSt at 100°C |
| Upper Temperature Rating | 175 Degrees Celsius |
| Specific Uses For Product | Automatic Transmission Maintenance, Vehicle Compatibility, Performance Improvement |
| Item Form | Liquid |
| Global Trade Identification Number | 00079191335208 |
| Manufacturer | Castrol |
| Unit Count | 128.0 Fluid Ounces |
| UPC | 079191335208 |
| Number of Items | 1 |
| Model | 03520 |
| Item Weight | 7.45 pounds |
| Product Dimensions | 4.62 x 9.5 x 11.52 inches |
| Item model number | 03520 |
| Manufacturer Part Number | 03520 |

## Product Details

- **Material:** Molybdenum Disulfide Calcium Sulfonate
- **Brand:** Castrol
- **Package Information:** Bottle
- **Liquid Volume:** 128 Fluid Ounces
- **Recommended Uses For Product:** Automotive

## Images

![Transmax DEX/MERC Automatic Transmission Fluid, 1 Gallon - Image 1](https://m.media-amazon.com/images/I/61aEVtXcf5L.jpg)

## Questions & Answers

**Q: Can I use it in a 2000**
A: Honda s2000?  2000 model year Ferrari? 2000 individual mini cooper's? Perhaps the answer isn't in the answer. Perhaps the answer is in the question. As in, why would you touch your vehicle if you can't ask an appropriate question?

**Q: will this work for a 98 jeep cherokee auto 4wd**
A: Here is a link to the list of approved vehicles from Castrol!!!

https://msdspds.castrol.com/bpglis/FusionPDS.nsf/Files/1BF017717048528380257EDC004D3B0A/$File/BPXE-9FT8RL.pdf

**Q: does this fluid replaces ATF-Z1?**
A: ATF-Z1 is Dex3 with a friction modifier. This will cover that spec. As the trans ages & wears you may be better served by using a higher viscosity fluid such as AMSOIL ATF. If you are doing a drain & refill, the ffirst one is about 44% new fluid replacement. The 3rd. one will take you to 85%. Think diloution rate vs. volume.

**Q: Can this work w/ toyota camry 1999 uses dexron iii? also, can i mix other brand dexron iii (not for hi mileage) w/ this castrol atf for high mileage?**
A: Yes and yes.  However, in my experience, Dexron VI (even in an old worn transmission) will dramatically improve shift quality even in transmissions rated for Dexron III or Toyota Type IV (which is rebranded Dexron IV).

## Frequently Bought Together

- Castrol Transmax DEX/MERC ATF, 1 Gallon, Automatic, Black
- PEAK 50/50 Prediluted Antifreeze and Coolant for All Engine Cooling Systems
- Prestone AS401 DOT 3 Synthetic Brake Fluid - 32 oz.

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**Shop now:** [https://www.desertcart.com.kw/products/7756979-transmax-dex-merc-automatic-transmission-fluid-1-gallon](https://www.desertcart.com.kw/products/7756979-transmax-dex-merc-automatic-transmission-fluid-1-gallon)

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*Product available on Desertcart Kuwait*
*Store origin: KW*
*Last updated: 2026-02-01*