Precision Formula™

The HD Coolant Experts

Heavy duty engines work harder than those found in passenger vehicles. That’s why they need a specially formulated coolant – like the kind from HD Expert. Our team of expert engineers has developed proprietary formulas specifically for HD applications. These precise formulas keep your engine cool and clean, so you can get the job done.

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

Extreme temperatures
Aluminum engines
Wet Sleeve liner cavitation