Anceaux XL is actually synthetic engine oil, which is changed once every six months, with a maximum length of 7,500 kilometers. The engine oil is not sealed in the engine, and its poor oxidation resistance will quickly decay. In this case, you can use GT Maroon 5 engine oil, PAO base oil and additives, which have good oxidation resistance. This is the characteristic of PAO. Often run long distances, 30,000 kilometers can be changed once a year, almost 15000 kilometers.