Pentofrost A1 is a phosphated organic acid technology (phosphated OAT); which is categorized as HOAT (hybrid organic acid technology) in the US market.Pentofrost A1 is suitable for all Asian vehicles using “red” Antifreeze/Coolant. Pentofrost A1 does not contain any silicate, borate, nitrite, or amine additives since these may harm your Asian vehicle. Do not mix with other coolants (especially silicated coolants), as this may cause gel formation and clog your radiator. Pentofrost A1 is an antifreeze CONCENTRATE for Asian vehicle applications in water-cooled engines. Must mix with distilled water. It contains phosphates and organic salts to protect all materials used in cooling systems for Asian vehicles. Pentofrost A1 is mixable with all phosphated OATs. Meets ASTM D-3306.

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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