Zerex Pre-Charged 50/50 Prediluted Antifreeze/Coolant from Valvoline is formulated to meet the harsher demands of heavy-duty diesel engines such as Cummins, DDC, MACK, Navistar and Paccar. It’s also considered a universal engine coolant that meets performance requirements for automobiles and light trucks. Pre-charged with nitrite, its low-silicate formula helps extend the longevity of your engine by protecting internal parts from pitting, cavitation, corrosion and scale deposits while preventing freezing and boil-overs. Plus, it includes a high-quality defoamer so it won’t harm gaskets, hoses, plastics or original vehicle finishes. It’s guaranteed to perform for up to 3 years, 150,000 miles or 3,000 hours of operation when used in conformity with package and label instructions and specifications. When it comes to protecting and prolonging the performance of your heavy-duty engine, trust Zerex for the long haul.

• PRE-CHARGED WITH CORROSION, SCALE AND RUST INHIBITORS so that radiators, water pumps and other metal cooling system parts stay clean, and your antifreeze flows and functions properly.
• PROTECTS ALL COOLING SYSTEM METALS INCLUDING ALUMINUM and won’t harm gaskets, hoses or original vehicle finish
• PRE-MIXED GREEN SOLUTION IS READY-TO-USE and comes in a 50/50 ratio with deionized water
• 3 YEAR/150,000 MILE GUARANTEE protects against engine failure caused by freeze-ups or boil-overs

ZEREX Pre-Charged Heavy Duty is formulated to meet or exceed the following antifreeze specifications:

• ASTM D3306 GM 1825M
• ASTM D6210
• Case New Holland
• CAT
• Cummins
• Dae Woo
• Detroit Diesel
• Federal Specification A-A-52624
• Federal Specification A-A-870-A
• Ford before 2002
• Freightliner
• GM 1899M
• John Deere
• Mack
• Navistar MPAPS B1
• Paccar
• SAE J1034
• SAE J941
• SAE J814
• TMC of ATA RP-302B
• TMC of ATA RP-329B
• Waukesha

Coolant / Antifreeze Says a lot about Cooling System Health!

Routinely inspect your Coolant / Antifreeze with these simple checks, and flush the system when necessary, to help prolong the life of your Cooling System:

COOLANT COLOR / CLARITY
Coolant should be bright, clear and free of debris. Dirty or brown coolant can be caused by: A blown Cylinder Head Gasket Corrosion from imbalanced coolant chemistry Oil in Coolant

COOLANT CONDITION
Use Coolant / Antifreeze Test Strips to test condition / chemistry. Poor coolant condition can be caused by: Frequently topping off with water Improper dilution / mixing coolant formulas Test Strip Process

COOLANT VOLTAGE
Use an Electrical Tester to Test Coolant for Electrolysis. Common causes of Electrolysis include: Stray electrical current from a loose or damaged Battery Cable ground Worn / old, acidic coolant A reading of 0.4 volts or above suggests electrolysis

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