Contaminants can enter your gearbox oil as a result of vents or the fill tube in the course of checking/filling. Most of the time, nevertheless, contaminants are the results of usual don. The gearbox filter protects from these contaminants which aids improve gearbox life. There are 2 principal different types https://dallasetdmv.blog2news.com/34728514/new-step-by-step-map-for-filter-gearbox