Lubricant composition with low deposition tendency

Details Lubricant composition with low deposition tendency Lubricant composition with low deposition tendency

C - Chemistry, Metallurgy

10

M

C10M 111/04 (2006.01) C10M 169/04 (2006.01)

Patent

CA 2697030

Lubricant base oil blends and finished lubricating compositions having low deposition tendency are provided. The base oil blends consist essentially of about 20 wt % to about 80 wt %, based on the total weight of the blend, of an F-T Group III base oil having less than 5 wt % cycloparaffins, the balance of the blend being a Group III base oil having at least 35 wt % cycloparaffins. The finished lubricating compositions comprise a major amount of the base oil blend of the invention and at least one engine oil additive.

L'invention concerne des mélanges d'huile de base de lubrifiant et des compositions de lubrification finies ayant une faible tendance au dépôt. Les mélanges d'huile de base sont constitués essentiellement d'environ 20 % en poids à environ 80 % en poids, par rapport au poids total du mélange, d'une huile de base du groupe III F-T présentant moins de 5 % en poids de cycloparaffines, l'équilibre du mélange étant une huile de base du groupe III présentant au moins 35 % en poids de cycloparaffines. Les compositions de lubrification finies comprennent une quantité importante du mélange d'huile de base de l'invention et au moins un additif d'huile de moteur.

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