2nd, never use a unstable, chlorinated solvent or solvent-kind flushing compound to clean out the gearbox. Any solvent trapped within the voids with the reservoir will trigger corrosion. - Extension of provider life. The gearbox additive helps to keep a dense layer of transmission oil about the surfaces of sections, https://juliusukvel.smblogsites.com/34161059/little-known-facts-about-gearbox-oil-treatment