---
product_id: 11135228
title: "Zerex Extended Life Red Heavy Duty (HD) Concentrate Antifreeze/Coolant 1 GA, Case of 6"
brand: "zerex"
price: "₨274536"
currency: LKR
in_stock: true
reviews_count: 8
url: https://www.desertcart.lk/products/11135228-zerex-extended-life-red-heavy-duty-hd-concentrate-antifreeze-coolant
store_origin: LK
region: Sri Lanka
---

# 6 years drain interval 3 Years/300K miles protection Meets top specs Zerex Extended Life Red Heavy Duty (HD) Concentrate Antifreeze/Coolant 1 GA, Case of 6

**Brand:** zerex
**Price:** ₨274536
**Availability:** ✅ In Stock

## Summary

> 🚗 Keep your engine cool and your worries at bay!

## Quick Answers

- **What is this?** Zerex Extended Life Red Heavy Duty (HD) Concentrate Antifreeze/Coolant 1 GA, Case of 6 by zerex
- **How much does it cost?** ₨274536 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.lk](https://www.desertcart.lk/products/11135228-zerex-extended-life-red-heavy-duty-hd-concentrate-antifreeze-coolant)

## Best For

- zerex enthusiasts

## Why This Product

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

## Key Features

- • **Industry Approved:** Meets Caterpillar EC-1 and other long-life specifications for peace of mind.
- • **Extended Longevity:** Maximize your maintenance schedule with a 6-year drain interval.
- • **Ultimate Protection:** Guard your engine with 3 years or 300,000 miles of reliable defense.
- • **Heavy Duty Performance:** Designed for tough conditions, ensuring your vehicle runs smoothly.
- • **Bittering Agent Included:** Safety first! Contains denatonium benzoate to deter accidental ingestion.

## Overview

Zerex Extended Life Red Heavy Duty Concentrate Antifreeze/Coolant is a premium coolant designed to provide exceptional protection against liner pitting and hard water scale. With a guaranteed lifespan of 3 years or 300,000 miles, it meets stringent industry specifications and allows for extended drain intervals of up to 6 years or 600,000 miles when used with the Zerex Extended Life Extender. This product is essential for maintaining optimal engine performance and longevity.

## Description

Zerex Extended Life Red Heavy Duty (HD) Concentrate Antifreeze/Coolant 1 GA, Case of 6

## Features

- Fully formulated or pre-charged to protect against liner pitting and hard water scale
- 3 Years/300,000 mile protection guaranteed
- Meets the Caterpillar EC-1, 14603, and DDC long-life specifications
- Extend drain interval to 6 years, 14,000 hours, or 600,000 miles with the use of Zerex Extended Life Extender
- Contains 30 – 50 ppm of denatonium benzoate as a bittering agent

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Valvoline |
| Brand | Zerex |
| Model | ZXED1-6PK |
| Item Weight | 60.8 pounds |
| Product Dimensions | 16 x 12.75 x 12.7 inches |
| Item model number | ZXED1-CS |
| Is Discontinued By Manufacturer | No |
| Manufacturer Part Number | ZXED1-6PK |

## Images

![Zerex Extended Life Red Heavy Duty (HD) Concentrate Antifreeze/Coolant 1 GA, Case of 6 - Image 1](https://m.media-amazon.com/images/I/61D-tg3hVyL.jpg)
![Zerex Extended Life Red Heavy Duty (HD) Concentrate Antifreeze/Coolant 1 GA, Case of 6 - Image 2](https://m.media-amazon.com/images/I/714gtZLjIrL.jpg)
![Zerex Extended Life Red Heavy Duty (HD) Concentrate Antifreeze/Coolant 1 GA, Case of 6 - Image 3](https://m.media-amazon.com/images/I/81WVYZsKSmL.jpg)
![Zerex Extended Life Red Heavy Duty (HD) Concentrate Antifreeze/Coolant 1 GA, Case of 6 - Image 4](https://m.media-amazon.com/images/I/61-VNAnsRCL.jpg)
![Zerex Extended Life Red Heavy Duty (HD) Concentrate Antifreeze/Coolant 1 GA, Case of 6 - Image 5](https://m.media-amazon.com/images/I/61Xn7s1TxLL.jpg)

## Available Options

This product comes in different **Configuration, Size** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ What is most important to know
*by R***  on April 23, 2025*

Very good product and value for money.

### ⭐⭐⭐⭐⭐ It's coolant
*by J***S on May 7, 2025*

Works as it should.

### ⭐⭐⭐⭐⭐ Great Diesel Coolant and Cheaper by the Case (Way to go Amazon)
*by B***D on October 24, 2014*

While preparing to do a Radiator Flush on my '03 Ford Power-stroke 6.0 Diesel, I looked high and low for the specialized Coolant formulated for Diesel Engines and Cast Iron Blocks. I didn't want the premixed stuff so many companies are now only offering. I prefer to mix my own, that way I know what I'm putting in my expensive Diesel motor. It seems companies are offering premixed coolant only to make more money from us, the customer. After all, do you really know what mixture you are getting?When I mix my own making a 50/50 mix of antifreeze and distilled water, I know I am getting exactly that. And because the straight stuff is only a couple dollars more than the premix, you are getting way more for your money. Coolant of any type is not cheap by no means anyway, why pay what comes out as $4-5 per gallon for distilled water that you can buy for as little as .89 cents at the local market.In the long run, you make out better buying and mixing your own anti-freeze coolant. Plus when you buy in by the case, you have plenty left over for another flush years down the road. This Zerex is made for Diesel engines and certified by CAT EC-1, which regardless of color, if your coolant is going into your Diesel Engine, it better say CAT EC-1 somewhere on the bottle or don't use it in your 20k motor.

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*Product available on Desertcart Sri Lanka*
*Store origin: LK*
*Last updated: 2026-02-14*