Contaminants can enter your gearbox oil via vents or maybe the fill tube all through checking/filling. Most of the time, nonetheless, contaminants are the result of usual have on. The gearbox filter guards towards these contaminants which allows increase gearbox existence. There's two primary types of transmissions: automatic and guide. https://filtergearbox70357.liberty-blog.com/34220733/filter-gearbox-for-dummies