OTR 50/50 Pre-Mix Antifreeze/Coolant – 1 Gallon | Heavy Duty

OTR 50/50 Pre-Mix Antifreeze/Coolant – 1 Gallon

Keep your engine cooling system protected with OTR 50/50 Pre-Mix Antifreeze/Coolant – 1 Gallon. This ready-to-use, ethylene glycol-based antifreeze is formulated to help protect compatible engine cooling systems against freezing, overheating, rust, and corrosion while supporting efficient engine temperature regulation.

Designed for convenient cooling system maintenance, OTR 50/50 Premixed Coolant comes pre-diluted, eliminating the need to measure or mix antifreeze concentrate with water. Its convenient 1-gallon container makes it a practical option for commercial truck maintenance, repair shops, fleet service operations, and other compatible vehicle applications.

READY TO USE – NO WATER OR ADDITIONAL DILUTION REQUIRED.

OTR 50/50 Premixed Coolant Features & Benefits

• Ready-to-Use 50/50 Formula: Pre-diluted antifreeze/coolant eliminates the need for additional mixing.
• Freeze Protection: Helps protect engine cooling systems against freezing in cold weather.
• Overheating Protection: Supports effective heat transfer and temperature regulation during engine operation.
• Corrosion Protection: Helps protect cooling system components against rust and corrosion.
• Ethylene Glycol-Based: Formulated for dependable antifreeze and coolant performance.
• Convenient Maintenance: Ideal for compatible cooling system refills and coolant replacement.
• Commercial Vehicle Applications: Suitable for vehicles requiring the corresponding coolant specification.
• 1-Gallon Container: Convenient size for repair shops, fleet maintenance, and routine service.

Ready-to-Use Antifreeze – No Mixing Required

Unlike concentrated antifreeze that must be diluted before use, OTR 50/50 Pre-Mix Antifreeze/Coolant is supplied in a ready-to-use formulation.

The coolant is already mixed to a 50/50 concentration, making it convenient for filling or topping off compatible cooling systems without preparing a separate coolant mixture.

• No additional water required
• No separate coolant mixing process
• Convenient for routine cooling system maintenance
• Helps maintain a consistent premixed coolant concentration

Do not add additional water to this premixed product unless specifically directed by the engine or coolant manufacturer. Adding water will change the coolant concentration and may reduce its protective properties.

Heavy-Duty Truck & Diesel Engine Cooling System Maintenance

Commercial diesel engines operate under demanding conditions that place significant stress on their cooling systems. Proper coolant maintenance is essential for helping prevent corrosion, maintaining heat transfer, and protecting engine components.

OTR 50/50 Premixed Antifreeze/Coolant provides a convenient option for maintaining compatible cooling systems used in:

• Heavy-duty semi trucks
• Commercial diesel trucks
• Fleet vehicles
• Vocational trucks
• Service trucks
• Construction and industrial equipment
• Other compatible vehicle cooling systems

Important: Coolant compatibility depends on the engine manufacturer's required coolant chemistry and specifications. This product should not be assumed compatible with every Detroit Diesel, Cummins, PACCAR, Volvo, Mack, or International engine.

Protection Against Rust, Corrosion & Overheating

A properly maintained engine cooling system helps regulate engine temperature and protect critical components such as the radiator, water pump, thermostat housing, and engine coolant passages.

OTR premixed antifreeze is designed to help reduce rust and corrosion while supporting effective heat transfer in approved cooling system applications.

Using the correct coolant type and maintaining proper fluid levels can help reduce cooling system problems and support dependable engine operation.

When Should You Replace or Add Engine Coolant?

Cooling system maintenance intervals vary by engine manufacturer, coolant formulation, and operating conditions. Regular coolant inspection and testing are important for maintaining reliable engine performance.

Coolant service may be necessary when:

• The coolant level is below the manufacturer's recommended range
• Coolant testing indicates inadequate freeze protection
• Rust, debris, or other contamination is present
• The cooling system has been repaired or drained
• Coolant chemistry is unknown or incompatible
• The manufacturer's recommended coolant service interval has been reached

Always identify and repair coolant leaks rather than repeatedly topping off a leaking cooling system.

OTR 50/50 Pre-Mix Antifreeze/Coolant Specifications

• Brand: OTR
• Product: 50/50 Pre-Mix Antifreeze/Coolant
• Product Type: Engine Antifreeze/Coolant
• Formula: Ready-to-Use 50/50 Premix
• Fluid Base: Ethylene Glycol
• Container Size: 1 Gallon (128 fl oz)
• Distributor Part Number: PTAF2301R
• Listed Manufacturer Part Number: 11202
• Dilution Required: No
• Application: Compatible Vehicle and Heavy-Duty Engine Cooling Systems
• Quantity: 1 Gallon Container

Coolant Compatibility & Mixing Precautions

Before adding antifreeze to an existing cooling system, verify the coolant technology and specifications required by the engine manufacturer.

Different coolant formulations may use different corrosion inhibitor technologies. Mixing incompatible antifreeze products can reduce cooling system protection and may affect recommended maintenance intervals.

Coolant color alone does not establish compatibility. Always verify the product specification and the coolant currently installed in the engine.

Safety & Handling Information

This product contains ethylene glycol, which is harmful if swallowed. Keep antifreeze away from children and animals, avoid unnecessary contact, and follow the product label and Safety Data Sheet.

Never open a radiator or coolant reservoir while the cooling system is hot or pressurized. Collect used coolant and dispose of it according to applicable environmental regulations.