MOTUL AUTO COOL OPTIMAL ULTRA is a concentrated long life antifreeze that should be mixed with soft water for immediate use as a cooling liquid, based on monoethyleneglycol, using an Organic Acid Technology (OAT) additivation named Organic Tech.
Strongly recommended for all cooling systems: passenger cars, heavy duty, construction and agriculture vehicles, gardening, ships, stationary engines …

STANDARDS AND MANUFACTURER SPECIFICATIONS: Refer to chart.
Contains a bitterness agent to prevent from drinking: coolants and antifreezes have a sweet taste but are harmful.
Optimal protection of cooling systems against freezing and metallic parts against corrosion.
OAT technology provides an excellent thermal exchange and therefore improves engine cooling efficiency and prevents from boiling.
This organic technology provides anti-corrosion properties that remain at high temperature and aging. Low corrosion inhibitors consumption allows extended drain intervals.
Water pump protection, avoids cavitation.
Seals, rubber pipes, hoses and plastic parts friendly.

PROTECTION	AUTO COOL OPTIMAL ULTRA
T °C / T °F	T °C / T °F*	%
-22°C / -8°F	132°C / 269°F	33%
-30°C / -22°F	134°C / 273°F	40%
-41°C / -42°F	136°C / 277°F	50%
-54°C / -65°F	139°C / 282°F	60%

* +1,5 Bar

Do not use pure product.
Mix with soft water according to the required freezing protection: refer to chart.
To maintain anti-corrosion properties, do not dilute below 33%.
Water for dilution: If possible, use soft water: Maximum hardness 35°F and chlorides and sulfates maximum contain 500 ppm.
Drain intervals: Refer to the manufacturers' recommendation.
Attention, control or drain the coolant only when the engine is cold.
Do not mix with non-organic products.
This product should not be used to protect drinking water systems against freezing.
Dangerous. Respect the use and handling recommendations.