Why do you use mineral oil as the base oil for bell hammer oil? I have a feeling that if synthetic oil were used as the base oil, it would be an even higher performance oil. Is there any plan to release Bell Hammer synthetic oil?

The reason why mineral oil (highly refined oil) is used as a base oil is largely due to the fact that it was used as an additive for turbine oil and gear oil, which are base oils for industrial machinery, to extend the life of industrial machinery, which was the reason for its development.
In addition, the stability of highly refined oils when mixed with synths and synthetic oils and the true value of highly refined oils have many advantages over ester oils, so they are often based on highly refined oils (mineral oils).
Synthetic oils are also used in some of our products, so it does not mean that we do not use synthetic oils at all.