Purpose and Specifications

MOTUL Inugel Optimal 1L is a premium concentrated antifreeze coolant using Organic Acid Technology (OAT) that delivers top protection for your engine's cooling system. It guards against freezing down to -37°C when ready-to-use mixed, prevents boiling up to 180°C, and shields metal parts from corrosion even under high heat and long use. This nitrite-free, amine-free formula is safe for seals, hoses, and plastics, while boosting heat transfer for better engine cooling. Mix with soft water (33-60% concentration) for custom freeze protection up to -54°C; lasts 5 years or 250,000 km with low drain needs.

When to Use / Replace?

Use in all cars, trucks, construction gear, boats, and stationary engines for reliable cooling in extreme weather. Ideal for daily drivers or heavy-duty work where corrosion eats parts fast. Replace every 4-5 years or 200,000-250,000 km, or if coolant looks dirty, overheats occur, or corrosion shows. Shelf life is 3-5 years sealed. Check levels yearly; top up with same mix to avoid issues.

• Protects to -37°C ready-to-use, mixes colder to -54°C.
• Boil-safe to 180°C for high-performance runs.
• Long-life: 250,000 km intervals.