Precision Formula™

Coolant Technology & Application

Coolant Technology and Application ( Read Less )

Coolant is made up of water, glycol and supplemental cooling additives. Additives are a small portion of the mixture but they have a big affect on coolant application. There are three basic types of coolants in use today, and each is defined by its corrosion inhibiting additives.

What corrosion inhibitors do
 ( Read Less )

Water and glycol flowing through the cooling system can quickly cause engine damage. This basic mixture eats away at vital engine components, while also creating rust and scale. Tiny bubbles may also form, causing pitting throughout the cooling system. This is referred to as cavitation.

Corrosion inhibitors defend against these problems by bonding to the metals of the cooling system. This provides the engine components with a protective layer.

Coolant classification ( Read Less )

Corrosion inhibitors may be inorganic, organic or a combination of the two. A coolant’s application and classification is based on what kind of inhibitors it has. Currently, there are three basic coolant types:

Learn More

Get expert training on coolant fundamentals and troubleshooting at HD Expert’s Coolant University

Specialized Formulations for Heavy Duty Engines

Engine protection

HD Expert coolants have special additives for unparalleled engine protection.

Temperature control

Not too hot and not too cold – HD Expert coolants keep your engine at the right operating temperature.

Long service life

Avoid unnecessary service with HD Expert extended life coolants.

Introducing Proshield®

• Reduced need for coolant extender
• 2-EHA free organic additive technology

Protect
Extreme temperatures
Aluminum engines
Wet Sleeve liner cavitation
Defend
Corrosion
Deterioration
Rust