Would this be suitable for a 2003 gmc 6.6 liter diesel engine?

Yes, the Valvoline Zerex DEX-Cool Antifreeze/Coolant, Concentrated - 1gal (Case of 6) (ZXEL1-6PK) is suitable for use in all 1997 - 2018 GM passenger car and trucks.

Can i use in Triumph Rocket Roadster?

Unfortunately, we are not supplied with motorcycle information by application. If you have the owner's manual available and would like to discuss this in more detail, please call us at 800-832-6825 option 5 or email us at productsupport@valvoline.com.

Is this the same as motorcraft vc-3-b orange organic acid tech? i have a ford 2015 6.7 l powerstroke diesel

The Zerex DEX-COOL Organic Acid Technology Antifreeze/Coolant 1 GA, Case of 6 is compatible to use with the Motorcraft Specialty Orange coolant, and is recommended for use in all 2013-2017 Ford passenger trucks.

Dex Cool Organic Acid Technology Concentrate Antifreeze Coolant 1 Ga

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€ 490.07

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Sold byAmazon CroatiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🧊 Keep your engine cool, clean, and unstoppable with DEX-COOL’s cutting-edge antifreeze!

EXTREME CLIMATE READY - Formulated to prevent winter freeze and summer boil when diluted 50/50 with water—your engine’s year-round guardian.
PURE CLEAN CHEMISTRY - Free from phosphates, silicates, borates, nitrates, amines, and nitrites for superior metal and gasket safety.
UNIVERSAL COMPATIBILITY - Approved by GM 6277M and compatible with Opel, Saab, Dae Woo, and all DEX-COOL coolants—mix with confidence.
LONG LASTING ENGINE SHIELD - Patented organic acid tech delivers up to 5 years or 150,000 miles of reliable cooling system protection.
ENGINEERED FOR MODERN METALS - Protects aluminum and all cooling system metals without harming hoses, gaskets, plastics, or vehicle paint.

Valvoline ZEREX DEX-COOL is a premium organic acid technology antifreeze concentrate designed for up to 5 years or 150,000 miles of protection. It safeguards all cooling system metals, including aluminum, with a phosphate- and silicate-free formula that prevents freezing and boiling extremes. Approved to GM 6277M and compatible with multiple vehicle brands, it ensures long-lasting, reliable engine cooling without damaging gaskets, hoses, or paint.

Reviews

J**E

Good Buy

Good buy and fast shipping. Used in a Katolight 40kw generator.

5.01.2026

B**E

Great value

Great price for a great product

18.02.2025

M**O

Compatible with Dexcool

I've trusted Valvoline for years. Put into an '18 Terrain. So far working well. Hope it lasts for the full five years GM recommends.

9.12.2023

A**W

Works great for my car

Check your owners manual to see what coolant you need

25.08.2023

A**R

Damaged and missing products

First of all I ordered a case of six. Only received 5 and second they were all crushed and one leaked all over and missing a 1/2 qt.

2.01.2023

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