Precision Formula™

More power for your construction fleet—and less downtime. Advanced coolant technology for the hardest HD engines on earth.

Haulers, loaders, excavators—your equipment has a tough job to do.
HD Expert’s proprietary formulas were developed by engineers to keep your heavy duty construction equipment in peak condition through even the harshest conditions.

These specialized formulas defend against corrosion, deterioration, rust and extreme temperatures—keeping your fleet’s engines cool and clean so you can get the job done. Get maximum protection for the hardest HD engines on earth.

HD Expert Premium
HD Expert Extra
HD Expert Endurance

Does Your Coolant Hold Up?

Nearly half of all engine breakdowns occur due to cooling system problems. Prevent engine failure and make sure your coolant is maximizing your fleet’s performance with a free testing kit from HD Expert.

Get Your Free Test Kit Today

Your free HD Expert analysis includes detailed information on:

  • Contamination levels
  • pH levels
  • Corrosion inhibitor levels
  • Foaming properties
  • Freezing & boiling points

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