... oil, gasoline engine oil, car oil, motor oil,ship engine oil, truck oil, and used hydraulic oil, other used machinery lubrication oil, it is ... of various mixtures of used car engine oil(diesel engine oil, gasoline engine oil), motor oil, ship oil, truck oil and other industrial ... , cost is 30$ for additives to recycling one tons black used car/motor/truck oil.2) Easy to operate,low operation cost, only ...