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General Details:
| Specification | ASTM D3306 |
| Specification | ASTM D4985 |
| Specification | ASTM D6210 |
| Specification | BRB BR 637 |
| Specification | BRITISH STD BS 6580 |
| Specification | GER FVV Heft R443 |
| Specification | KOREAN STD KSM 2142 |
| Specification | MIL-Bel BT-PS-606 A |
| Specification | MIL-FR DCSEA 615/C |
| Specification | MIL-Italy E/L-1415b |
| Specification | NATO STANDARD: S-759 |
| Specification | UNE STD 26-361-88/1 |
| Oil - manufacturer recommendation | AUDI TL-774 D = G 12 |
| Oil - manufacturer recommendation | AUDI TL-774 F = G12+ |
| Oil - manufacturer recommendation | CUMMINS IS |
| Oil - manufacturer recommendation | CUMMINS IS series |
| for components see parts list |
Addtional Images:
Motul Auto Cool Optimal Ultra is a long life antifreeze, coolant and anti-corrosion concentrate that must be diluted with soft water for immediate use as a cooling liquid, based on monoethylene glycol and using Organic Acid Technology (OAT) additives named Organic Tech. Free from nitrites, amines, phosphates, borates and silicates.
Application:
Strongly recommended for all cooling systems including passenger cars, heavy duty, commercial, construction and agriculture vehicles, gardening, marine and stationary engines.
Do not mix with non-organic products. To maintain anti-corrosion properties, do not dilute below 33%. If possible, dilute with soft water with maximum hardness 35°F and maximum chloride and sulphate content 500 ppm.
Recommended Dilutions:
| Protection (T°C / T°F) | Protection (T°C / T°F) | Auto Cool Percentage (%) |
|---|---|---|
| -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% |
Please note: This product was formerly known as Motul Inugel Optimal Ultra.
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