Why Choose AMSOIL Propylene Glycol Antifreeze Coolant?
Unlike today’s conventional antifreeze and coolant, AMSOIL’s formula is engineered to exceed OEM and ASTM D3306 requirements, delivering unmatched protection and reliability across a wide range of vehicles and equipment—from daily drivers to recreational vehicles, boats, and spas.
This advanced coolant is based on propylene glycol as an antifreeze, a safer alternative to ethylene glycol. It’s biodegradable, non-toxic, and offers industry-leading protection while being environmentally conscious.
Long-Life Performance That Saves Time and Money
- Passenger Vehicles: Protects for up to 5 years or 150,000 miles (240,000 km)
- Heavy-Duty Engines: Lasts up to 8 years or 1,000,000 miles (1,600,000 km), or 20,000 hours of operation
- Freeze Protection: Up to -34°F (-36°C)
- Boil-Over Protection: Up to 265°F (129°C) with a 15-psi cap
Whether you’re driving cross-country or towing in tough terrain, this glycol antifreeze and coolant gallon is designed to keep your engine protected for the long haul.
Universal Compatibility
The yellow-dyed AMSOIL Propylene Glycol Biodegradable Antifreeze is fully compatible with all antifreeze colors and types—including:
- DEX-Cool™®
- Zerex™®
- Sierra propylene glycol antifreeze
- Fully formulated diesel antifreezes
- OAT and HOAT coolants
That means you can safely use this coolant without worrying about compatibility issues. No system flush is required when switching from other types.
Unmatched Protection for All Engine Types
Metallic Corrosion & Erosion Defense
Forms a tough barrier on metal components using organic acids
Outperforms in ASTM testing on cylinder heads, water pumps, and core metals like steel, aluminum, copper, and brass
✅ Anti-Scaling Formula
- Phosphate-, silicate-, and borate-free
- Resists scale build-up, even with tap water exposure
- Prevents common scaling issues caused by todays conventional antifreeze and coolant products
✅ Cavitation & Pitting Protection
- Superior results in ASTM D7583 (John Deere Cavitation Test)
- Prevents liner pitting and erosion without the issues tied to nitrite-based coolants
Ideal for All Applications
Whether it’s your daily car, work truck, or a fleet of recreational vehicles, boats, or spas, AMSOIL Propylene Glycol Antifreeze delivers across the board:
- Passenger Cars & Light-Duty Trucks
- Over-the-Road Diesel Trucks
- Off-Road Equipment
- Motorhomes and RVs
- Marine Engines & Hot Tubs
This propylene glycol biodegradable antifreeze and coolant isn’t just versatile—it’s engineered for every kind of lifestyle and climate across North America.
AMSOIL: Trusted Since Day One
I’ve personally used AMSOIL for over 20 years—and I can say without hesitation, it outperforms every other brand I’ve tried. Not only does it keep engines running smoother and cooler, but it also saves time, money, and energy thanks to its extended service life. Whether you’re in the blazing heat of the Southwest or braving Canadian winters, this coolant delivers peace of mind.
Order Your Propylene Glycol Antifreeze Today
Ready to upgrade from conventional coolant and antifreeze products to a smarter, safer, and longer-lasting solution?
✔️ Safe, biodegradable, and non-toxic
✔️ Engineered for extreme temperatures and operating conditions
✔️ Backed by AMSOIL’s reputation for excellence
Get your AMSOIL Propylene Glycol Biodegradable Antifreeze and Coolant now—available in gallons and ideal for use in cars, trucks, diesel engines, recreational vehicles, boats, and spas.
Have Questions?
Reach out anytime. I’m here to help you make the best choice for your engine.
