Peak RUAB53 Premixed Antifreeze Coolant 1 Gallon 50/50

Product Description

The PEAK RUAB53 is a conventional premixed antifreeze and coolant formulated with ethylene glycol and de-ionized water in a ready-to-use 50/50 dilution ratio. The green-colored formula delivers freeze protection down to -34 degrees F and a boiling point of 224 degrees F, making it suitable for year-round cooling system maintenance. This 1-gallon container is commonly stocked by fleet shops, HVAC service vans, and light-duty vehicle service operations. It is installed by automotive technicians, fleet mechanics, and service professionals working on older gasoline and diesel-powered equipment.

The RUAB53 is intended for older automotive and light-duty gasoline and diesel applications where a conventional green antifreeze formula is specified. The premixed 50/50 formulation eliminates the need for on-site dilution, reducing the chance of incorrect mix ratios during a coolant flush or top-off service. It is compatible with systems designed for conventional inhibitor technology rather than extended-life or OAT-based formulas.

Key Features

• Ready-to-use 50/50 premix — no additional water or dilution required
• Freeze protection rated to -34 degrees F (-37 degrees C)
• Boiling point of 224 degrees F (107 degrees C) for high-temperature protection
• Conventional ethylene glycol formula with green dye for easy identification
• Flash point of 241 degrees F (116 degrees C)
• Specific gravity of 1.06 for straightforward hydrometer verification

Compatibility

Designed for older automotive and light-duty gasoline and diesel applications that specify a conventional green antifreeze and coolant formula. Not formulated for use as a replacement where extended-life, HOAT, or OAT coolants are required.

Installation Notes

Drain and flush the cooling system according to the equipment manufacturer's service interval before adding fresh coolant. Allow the engine or system to cool completely before opening the radiator cap or reservoir to avoid burns from pressurized hot coolant. Dispose of used antifreeze in accordance with local regulations — it is not suitable for drain disposal. A refractometer or coolant hydrometer can be used to verify concentration after service.