Zerex G05 Antifreeze/Coolant is proven to maximize engine life in newer Ford, Chrysler and Mercedes-Benz cars, light trucks and heavy-duty vehicles. Suitable for both gasoline and diesel engines, its original long-life chemistry is specially formulated with the highest quality virgin ethylene glycol and Hybrid Organic Acid Technology (HOAT). Zerex protects better than industry standards against corrosion, leaking, deposits as well as freezing and boiling – the four main causes of cooling system failure.

Zerex low-silicate, reduced pH, phosphate-free formula with Hybrid Organic Acid Technology (HOAT) protects all cooling system metals (including aluminum) from corrosion. It contains nitrites that protects diesel-engine cylinder liners from cavitation, while deposit control additives guard against hardwater deposits and scale. So radiators, water pumps and other metal cooling system parts stay clean and your antifreeze flows and functions properly. Whether you're topping off your radiator or doing a complete system flush, trust Zerex G05 Antifreeze/Coolant.

• UNSURPASSED FREEZE PROTECTION AND ANTI-BOIL PERFORMANCE outperforms industry standards
• HYBRID ORGANIC ACID TECHNOLOGY FIGHTS RUST, SCALE & CORROSION while protecting all cooling system metals (including aluminum)
• HIGH-QUALITY ADDITIVES PROTECT AGAINST LEAKS and won't harm gaskets, hoses, plastics or original vehicle finish
• PREDILUTED YELLOW FORMULA IS READY-TO-USE in a 50/50 ratio with deionized water to protect all modern engine components from winter freezing (-34F) and summer boiling (265F).
• YELLOW CONCENTRATE FORMULA should be mixed with clean tap water or demineralized water at 50/50 ratio for temperatures -34 to 265F; 60/40 for -62 to 270F; and 70/30 for -84 to 267F
• 5 YEAR/150,000 MILE GUARANTEE protects against engine failure caused by freeze-ups or boil-overs
• BATCH-TESTED IN THE LAB, FLEET-TESTED IN THE REAL WORLD to help car and truck owners achieve optimal performance and maximize engine life.

Valvoline ZEREX G05 Antifreeze Coolant is formulated to meet or exceed the following antifreeze specifications:

• ASTM D3306 GM 1825M
• ASTM D6210
• Case New Holland
• CAT EC-1
• Detroit Diesel 7SE298
• Federal Specification A-A-870A
• GM 1899M
• Mack
• Navistar MPAPS B1 III
• Paccar
• Perkins Diesel
• TMC of ATA RP-329B
• Chrysler MS 9769 John Deere JDM H24
• Cummins CES 14603
• Ford North America WSS-M 97B51-A1
• GE Wind Turbines
• JCB STD00088
• Mercedes-Benz before 2017
• MTU MTL 5048
• MAN List 3.3.7
• MTU/DDC

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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