---
product_id: 41776276
title: "Duragard© Diamond Synthetic© CK-4 SAE 5W-40-1 Gallon (Pack of 3) Meets WSS-M2C171-F1"
brand: "duragard"
price: "₩183903"
currency: KRW
in_stock: false
reviews_count: 5
url: https://www.desertcart.kr/products/41776276-duragard-diamond-synthetic-ck-4-sae-5w-40-1-gallon
store_origin: KR
region: South Korea
---

# Duragard© Diamond Synthetic© CK-4 SAE 5W-40-1 Gallon (Pack of 3) Meets WSS-M2C171-F1

**Brand:** duragard
**Price:** ₩183903
**Availability:** ❌ Out of Stock

## Quick Answers

- **What is this?** Duragard© Diamond Synthetic© CK-4 SAE 5W-40-1 Gallon (Pack of 3) Meets WSS-M2C171-F1 by duragard
- **How much does it cost?** ₩183903 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.kr](https://www.desertcart.kr/products/41776276-duragard-diamond-synthetic-ck-4-sae-5w-40-1-gallon)

## Best For

- duragard enthusiasts

## Why This Product

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

## Description

Duragard Diamond Plate CK-4 SAE 5W-40 Engine Oil is an extreme performance (HTHS) high-temperature, high-shear viscosity fully synthetic oil formulated to meet high-performance demands with long drain capabilities, possible increase in fuel efficiency and reduced over all costs. CK-4 will deliver more oxidization protection for hotter, heavy-duty engines, minimizing acid formation, deposits and viscosity increase, promoting reduced wear, improved shear stability, greater oxidation stability, and foam prevention. Suitable for mixed fleets.Duragard Diamond Plate CK-4 SAE 5W-40 Engine Oil is a new formula that is specifically engineered for use in mixed fleets, gasoline and diesel. CK-4 has a select additive package for exceptional performance at high temperatures and heavy loads with improved engine protection over previous CJ-4 formulas. The advance in oil technology standards establishes an oil quality specification that helps protect today and tomorrow diesel engines. Duragard Diamond Plate CK-4 SAE 5W-40 Engine Oil is a direct replacement for CJ-4 using the same viscosity grades in Synthetic or Synthetic Blend oil types providing protection for all future engine designs, while improving protection of current and previous engines. CK-4 and CJ-4 can be mixed and should have no detrimental impact to engines. However, it is recommended to completely change over to CK-4 oil by using a hot drain of the CJ-4 oil to help minimize residual oil and achieve full benefits of the new oil. Fleets using CJ-4 should implement a secondary storage for CK-4 or completely empty a CJ-4 tank before filling with Duragard Diamond Synthetic CK-4 SAE 5W-40 Engine Oil. 2017 and Newer CompatibilityAPI CK-4/SNCummins 20086Detroit Diesel 938K222Ford WSS-M2C171-F1Mack EOS-4.5MAN 3575MTU 2.1Renault RLD-4Volvo VDS-4.5

## Features

- About this item
- Exceeds warranty requirements of engine manufacturers that require a type API CK-4/SM premium 100% synthetic SAE 5W-40 motor oil.     Premium quality, High temperature, high shear, fully synthetic oil, heavy duty motor oil manufactured in the USA     Increased oxidation protection for high temperature, emission system engines     Formulated to meet the requirements of post-2017 low emission engines     May be used in older, conventional engines and gasoline engines    ›See more product details

## Images

![Duragard© Diamond Synthetic© CK-4 SAE 5W-40-1 Gallon (Pack of 3) Meets WSS-M2C171-F1 - Image 1](https://m.media-amazon.com/images/I/917NRVZZDvL.jpg)
![Duragard© Diamond Synthetic© CK-4 SAE 5W-40-1 Gallon (Pack of 3) Meets WSS-M2C171-F1 - Image 2](https://m.media-amazon.com/images/I/9113rU7tBZL.jpg)
![Duragard© Diamond Synthetic© CK-4 SAE 5W-40-1 Gallon (Pack of 3) Meets WSS-M2C171-F1 - Image 3](https://m.media-amazon.com/images/I/915IpH01aCL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ 







  
  
    Didn't seize my engine
  

*by O***E on Reviewed in the United States on December 5, 2020*

Bought this case for my 2019 Ram Cummins 6.7, meets Cummins CES20086 and API CK-4 & verified CK-4 specs on the API website. Drove home 25 miles from work and my engine didn't seize, engine seemed smooth just like normal with the other oils I've used (Rotella & Mobil1). Walmart doesn't seem to stock 10w30 or 5w40 API CK-4 oils anymore so this will probably be my new go to.

### ⭐⭐⭐⭐⭐ 







  
  
    Meets 2018 6.7l PowerStroke requirements
  

*by S***. on Reviewed in the United States on February 4, 2020*

100% synthetic oil that meets the 2018 ford superduty 6.7l PowerStroke requirements.  And it's available on amazon at a reasonable price so no need to drive around trying to find some place with the proper oil specs.  Purchased this Pack 4 times and will be purchasing my 5th soon.

### ⭐⭐⭐⭐⭐ 







  
  
    Five Stars
  

*by T***N on Reviewed in the United States on March 23, 2018*

AA+

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---

*Product available on Desertcart South Korea*
*Store origin: KR*
*Last updated: 2026-02-26*