... by 50%. Meet the American Cummins professional specification CES20076. The lubricant is specially made up for Dongfeng Cummins,and prolonges the ... oil change intervals by 50%. The lubricant applies to a wide rang of engines of RVI,volvo ... ,Yuchai,Huaichai and other diesel engines whose lubricant's standards should meet CG-4/CF-4/CF/CE ...