Inugel Optimal Ultra
Inugel Optimal Ultra

Inugel Optimal Ultra

  • Pure concentrated anti freeze - Anticorrosion & antifreeze
  • AOT Technology
  • Nitrite free / Amine free / Phosphate free / Borate free / Silicate free


  • MOTUL INUGEL OPTIMAL ULTRA is a pure concentrated anti freeze that should be mixed with soft water for immediate use as a cooling liquid, based on monoethyleneglycol, using organic additives (AOT).
  • Strongly recommended for all cooling systems : passenger cars, heavy duty, construction and agriculture vehicles, gardening, ships, stationary engines …
  • Offers cooling system optimal protection from freezing and metallic parts from corrosion.
  • AOT technology provides an excellent thermal exchange and then engine cooling efficiency and prevents from boiling.
  • This organic technology provides anti-corrosion properties that remain while high temperature and ageing. Low corrosion inhibitors consumption allows extended drain intervals. Water pump protection, avoid cavitation.
  • Seals, hoses and plastic parts friendly.



  • Do not use pure product. Mix with soft water according to the required freezing protection. Refer to chart in Specification Sheet
  • To maintain anti corrosion properties, do not dilute below 33%.
  • Water for dilution : If possible use soft water : Maximum hardness 35°Fr and chlorides and sulphates maximum contain 500 ppm.
  • Drain intervals : Refer to the manufacturers’ recommendation.
  • Do not mix with non organic products.
  • This product should not be used to protect drinking water systems against freezing.