Precision Formula™

We’re the HD Coolant Experts

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

  • Extra
    • OAT formula designed for universal application
    • Lasts up to 600,000 miles / 960,000 km / 12,000 hours or 6 years
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  • Extreme
    • OAT formula designed for extreme use
    • Lasts up to 750,000 miles / 1,200,000 km / 15,000 hours or 8 years
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  • Endurance
    • OAT formula with an ultra-long service life
    • Lasts up to 1,000,000 miles / 1,600,000 km / 20,000 hours or 8 years
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  • Premium
    • Hybrid formula compatible with multiple coolant types
    • Lasts up to 600,000 miles / 960,000 km / 12,000 hours or 6 years
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  • Classic
    • Universal formula for older vehicles
    • Provides advanced engine protection
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FORMULATED FOR HEAVY DUTY ENGINES.
MADE FOR HEAVY DUTY PERFORMANCE.

One Focus.
Heavy Duty Engine Coolants.

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