How often should the transmission fluid or oil be changed on a VW Jetta stick shift transmission shops say once a year? por thurmansancho3 | Sep 25, 2026 | Communications, Video ConferencingFind another shop. Most manual ปั้มไลค์ราคาถูก transmissions oil need to be changed only after 50,000 to 100,000 miles.If you have no shifting problems leave it alone.