Patent ID: 6521570
Filing Date: 2003-02-18
Classification: C10M,C10N

Abstract:
An automotive lubricant comprising:(a) a basestock of which at least 30 wt. % is a white oil having a naphthenic content of at least 25 wt. %; and (b) an antioxidant selected from one or more of zinc dialkyldithiophosphate, zinc diaryldithiophosphate, zinc alkylaryldithiophosphate, alkylated diphenylamine, hindered phenol, phosphosulphurised alkylphenol, sulphurised phenol, dimercaptodithiadiazole and copper-based antioxidant compounds; with the proviso that the lubricant does not contain a tin-containing antioxidant or an organically substituted phosphite or diphosphite antioxidant.