ULTRA 1PLUS 50/50 Antifreeze Coolant 1 Gallon — Green Premixed with Corrosion & Boil-Over Protection

ULTRA 1PLUS UltraCool Green 50/50 Antifreeze Coolant is a ready-to-use, universal engine coolant that blends corrosion protection, boil-over resistance, and compatibility for automotive and heavy-duty diesel systems.

Formulated for convenience and long-lasting protection, this 1-gallon bottle of 50/50 premixed green coolant eliminates the need for measuring concentrate and water. It meets ASTM D 3306 and ASTM D 4985 specifications, making it suitable for a wide range of passenger vehicles and commercial diesel engines. The balanced formula emphasizes low silicate and phosphate-free chemistry while incorporating a safe defoamer system designed to preserve hoses, plastics, and gaskets.

How does this coolant protect my engine from corrosion and overheating?

The UltraCool Green 50/50 coolant provides a blend of inhibitors that help guard metal surfaces inside the cooling system and reduce the risk of localized corrosion. Its boil-over protection improves heat transfer stability under higher temperature loads, helping the engine maintain safe operating temperatures.

• Contains corrosion inhibitors tailored for mixed metal systems
• Provides boil-over resistance under increased thermal stress
• Low silicate and phosphate-free to reduce deposit formation
• Ready-to-use 50/50 mix ensures proper freeze/boil protection out of the bottle

Can I use this coolant in both cars and heavy-duty diesel engines?

Yes—UltraCool Green 50/50 is formulated to satisfy both automotive and heavy-duty diesel requirements, meeting industry standards for each application. Its universal approach allows cross-vehicle compatibility while delivering the protection those systems require.

• Meets ASTM D 3306 for light-duty engines
• Meets ASTM D 4985 for heavy-duty diesel applications
• Compatible with most major makes and models
• Designed to be mixed with other heavy-duty coolants if needed

Is this product safe for my cooling system components and seals?

The formula includes a high-quality defoamer and is balanced to be non-harmful to common cooling system materials. It was developed to minimize adverse interactions with hoses, plastics, gaskets, and other non-metal components while preserving inhibitor performance.

• Non-damaging defoamer system protects rubber and plastic parts
• Low silicate content reduces abrasive deposits
• Phosphate-free formulation to limit scale and residue
• Suitable for long-term use when maintained at proper concentration

How do I use this ready-to-use 1-gallon coolant in my vehicle?

The product arrives premixed at a 50/50 ratio with water, so no dilution is required—just pour to the manufacturer-recommended fill point after draining the old coolant and flushing the system if necessary. Always follow the vehicle maker’s service manual for proper fill procedures and disposal of used fluid.

• Ready-to-use—no additional water needed
• Drain and flush old coolant per service guidelines before filling
• Top to the radiator or reservoir fill mark as specified by your vehicle
• Dispose of used coolant responsibly at a recycling or collection center

Who is this for? ULTRA 1PLUS UltraCool Green 50/50 Antifreeze Coolant is ideal for owners and technicians who want a convenient, reliable premixed coolant that fits both passenger cars and heavy-duty diesel equipment. It suits fleet managers, DIY mechanics, repair shops, and anyone replacing coolant without measuring concentrates. If you need a universal, ASTM-compliant green coolant that emphasizes corrosion control, low-silicate chemistry, and material-friendly performance, this 1-gallon solution provides an easy, consistent option.