上犹县美孚机油批发，兴国县美孚机油经销，赣州美孚机油零售，The difference between fully synthetic engine oil and semi-synthetic engine oil. Take Blue Heineken and Gray Heineken, for example. The total synthetic engine oil has a slow decay rate and a long replacement cycle. Total synthesis can be used for a longer time, but it is not certain how many kilometers of replacement, 5,000 kilometers after regular inspection of the oil situation. In addition with the full synthesis of good oil, but also the need for supporting the long-acting machine filter. Semi-synthetic engine oil and fully synthetic engine oil are two classifications of engine oil. The biggest difference between the two is that the temperature of the synthetic oil is wider and the service life is longer, the same oil film requirement