2. Mobil: world brand and top ten engine oil brands.

3. Castrol: Castrol is a recognized lubricant expert and one of the top ten engine oil brands in the world.

4. Great Wall: China well-known trademark, China famous brand, national inspection-free product and top ten engine oil brands.

5. Unification: China well-known trademark, China famous brand, national inspection-free product and top ten engine oil brands.

6. Compton: famous brand product, famous trademark in Shandong Province, top ten engine oil brands.

7. Flowserve: Flowserve Petroleum Group of Germany, founded in 193 1, is the largest lubricant manufacturer in the world.

8. Total: World brands, French brands and top ten engine oil brands.

9.BP: Zhejiang famous trademark, Jilin famous trademark and top ten engine oil brands.

10. Kunlun: a famous brand in China, a national inspection-free product, and the top ten engine oil brands.