In general, conventional base oil consists of hydrocarbon compound in its natural state and it is derived from crude oil. In order for the form and condition of the conventional base synthetic engine oil to have the best quality appropriate to its purpose, it requires a highly complex production process. Even after going through this complex process, it will result in a mixture of Chemistry compounds both satisfactory and dissatisfactory for the final engine oil product.
There is no method to extract the matter in its optimal form and condition material from this mixture. Even if such method existed, it would not be economically efficient since the output level is minimal.
As a result, the average levels resulting from the final product are the optimal form and condition for conventional base synthetic engine oil products. In other words, the final product consists of both good and bad elements.