One Focus.

HD Engine Coolant.

HD Coolant.

HD Performance

Advanced Coolant

Technology.

5 Specialized Formulations

For the hardest working heavy duty engines on earth

Extend Advanced Formula for Mixed Fleets Extend Up to 8 year performance Nitrite-Free Never requires SCA
Extra Advanced Formula for Mixed Fleets Extra Up to 6 year performance Nitrite-Free Never requires SCA
Extreme Advanced Formulation for Off-highway HD Diesel Fleets Extreme Up to 8 year performance Hybrid M&N formula Never requires SCA
Endurance Advanced Formula for LONG-HAUL DIESEL Fleets Endurance Up to 8 year performance Nitrite-Free Never requires SCA
Premium Improved Formulation for Diesel Fleets Premium Up to 6 year performance OEM approved Pre-charged with SCA
Classic Legacy Formulation For Mixed Fleets Classic For Multi-Vehicle Fleets Lowest Cost Pre-charged with SCA
Diesel Exhaust Fluid Legacy Formulation For Mixed Fleets Diesel Exhaust Fluid For Multi-Vehicle Fleets Lowest Cost Pre-charged with SCA

We’re the HD Coolant Experts.

For the toughest jobs. For the harshest conditions. For the longest hauls.

Our patented precision formulas keep your HD engine cool, clean, and running at optimum performance. HD Expert’s team of researchers and technicians have fine tuned our line up of five HD coolants, each offering the most advanced technology.

One focus.
Heavy-duty engine coolants.

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