The long-lasting performance of your hydraulic machines depends on the quality of the hydraulic fluid you use in the machine. There is no rocket science to decide which lubricants will be the best suited for your hydraulic machine -it all depends on the hydraulic system & application and viscosity grade. Above all, the most confusing part of this entire episode is that there are various but different types of hydraulic lubricant available in the market, and all products may not be optimal for the hydraulic application.