Long life gas engine oil and additive system

Details Long life gas engine oil and additive system Long life gas engine oil and additive system

C - Chemistry, Metallurgy

10

M

C10M 129/91 (2006.01) C10M 161/00 (2006.01) C10M 167/00 (2006.01)

Patent

CA 2346143

A gas engine oil of enhanced life as evidenced by a reduction in viscosity increase, oxidation, nitration, TAN increase, and TBN depletion comprises a major amount of a base oil of lubricating viscosity and a minor amount of a phenolic anti oxidant and a viscosity index improver, but excluding amine type anti oxydants.

L'invention concerne une huile pour moteur à essence à longue durée de vie caractérisée par une réduction de l'augmentation de la viscosité, de l'oxydation, de la nitratation, de l'augmentation de TAN et de l'épuisement de TBN. L'huile renferme en grande partie de l'huile de base lubrifiante et en moindre quantité un antioxydant phénolique et un correcteur du taux de viscosité, mais ne contient pas d'antioxydant de type amine.

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