AMSOIL Heavy-Duty Antifreeze & Coolant
AMSOIL Antifreeze and Coolant
AMSOIL Heavy-Duty Antifreeze and Coolant (ANTHD) is a fully formulated, ethylene glycol 50/50 pre-mix engine coolant built for diesel trucks.
AMSOIL products
AMSOIL Antifreeze and Coolant
Antifreeze, coolant, coolant boost, and cooling system products for cars, trucks, and equipment.
AMSOIL antifreeze and coolant
Buy AMSOIL antifreeze and coolant for passenger cars, light trucks, heavy-duty diesel, and propylene-glycol low-toxicity applications, plus Dominator Coolant Boost as a supplemental treatment for racing and severe-duty cooling systems.
Order online, or save up to 25 percent on every order by joining the AMSOIL Preferred Customer program for $20 USD per year. For local pickup, the order online covers the AMSOIL Dealer locator and how to find AMSOIL near you.
Add an AMSOIL Preferred Customer membership to the same cart to unlock up to 25% off qualifying products. Existing members can sign in, and qualifying orders currently over $100 can ship free.
Shop by Product Type
Start with a product family, then use the AMSOIL online lookup guide to choose the formula and viscosity that fits your application.
Heavy-Duty
DOMINATOR® Coolant Boost
AMSOIL DOMINATOR® Coolant Boost
AMSOIL Antifreeze and Coolant
Wetting-agent coolant additive that lowers surface tension in the cooling system to pull heat out of cylinder heads, blocks, and radiators faster.
Passenger Car &
AMSOIL Passenger Car & Light Truck Antifreeze & Coolant
AMSOIL Antifreeze and Coolant
Ethylene-glycol coolant pre-mixed 50/50 with high-purity water and built on an unique poly-organic acid (OAT) inhibitor system for cars, SUVs.
Powersports Antifreeze &
AMSOIL Powersports Antifreeze & Coolant
AMSOIL Antifreeze and Coolant
AMSOIL Powersports Antifreeze and Coolant (PSAF) is an ethylene glycol 50/50 pre-mix engine coolant formulated for liquid-cooled powersports equipment.
Propylene Glycol Antifreeze
AMSOIL Propylene Glycol Antifreeze and Engine Coolant
AMSOIL Antifreeze and Coolant
Propylene glycol-based hybrid organic acid (HOAT) coolant concentrate engineered to exceed original equipment manufacturer (OEM) and ASTM D3306 requirements.
Antifreeze Test Strips
Antifreeze Test Strips
AMSOIL Antifreeze and Coolant
Antifreeze Test Strips, an AMSOIL antifreeze and coolant stocked through the AMSOIL catalog for compatible applications.