Which engine oil is better, Shell or Castrol?

Shell proprietary base oil. Shell has its own exclusive synthetic base oil, using natural gas to make oil technology, which can clean up the engine carbon deposit in the process of vehicle use, so it will be more suitable for the engine type that is easy to deposit carbon.

Shell extraordinary Heineken engine oil is suitable for vehicles with more carbon deposits, because it has first-class cleaning ability, which can fully remove the carbon deposits generated by engine operation and prevent the engine from working normally due to too much carbon deposits.

As two recognized engine oil brands in the world automobile market, each has its own advantages and disadvantages. Shell engine oil is easy to increase oil impurities in the process of cleaning up carbon deposits. Castrol engine oil has complex components, which can't clean up carbon deposits well, but Shell is better in general.

How many grades of shell oil are there?

Shell engine oil is divided into three grades: fully synthetic oil, semi-synthetic oil and mineral oil. Of course, among these three grades, Shell engine oil plus synthetic oil is the best.

Shell engine oil is divided into five categories according to different packaging colors, namely, gray shell, blue shell, yellow shell, red shell and white shell. Each color represents a different purpose and level, and is also used for different vehicles.

Among them, gray shell refers to extraordinary Heineken and HX8, both of which are synthetic oils; Blue shell is semi-synthetic oil; The yellow shell includes HX6 and HX5, where HX6 is semi-synthetic oil and HX5 is mineral oil; Red shell HX3 and white shell HX2 are mineral oil.