... , through the distillation system, we can get the base oil we need, like the diesel base oil, engine oil & motor oil’ base oil, and the gasoline ... liquid, so we have to use our cooling system, after the cooling system, the oil’s temperature is low now, then to our ... . After the discoloring and deacidfication system, the oil is almost the new oil, and then goes to our oil storage tank. It is the ...