5W-30 all over synthetic engine oil. Jingming minibus is a minibus produced by Ma Jing Automobile Co., Ltd. of Jiangling Group. You can use 5W-30 all over synthetic engine oil. Engine oil has good fluidity at low temperature, which can lubricate the engine faster in cold weather and reduce the wear and tear during cold start. Using 5W-30 All-synthetic engine oil can better protect the engine of Jiangling Ma Jing van and prolong its service life.