| abstract |
(57) [Summary] [Purpose] To provide low phosphorus, low ash type diesel engine oil. [Composition] Mineral oil and / or synthetic oil is blended with zinc dialkyldithiophosphate, calcium carbonate overbased calcium salicylate and / or calcium borate overbased calcium salicylate, and boric acid-modified succinimide ashless dispersant. And the sulphated ash content is 0.4 The diesel engine oil composition was made up to 0.8 mass%. |