Occasionally, customers ask us to change their transmission fluid and filter when their transmission acts up. But servicing a transmission in today’s vehicles does not usually fix shifting problems. In most cases, there are no longer bands that can be adjusted. In fact, after a vehicle has gone more than 60,000 miles without a service, we recommend that customers not service their vehicles. The harshness of fresh detergents in new fluid can worsen shifting problems by “cleaning” worn clutches of their fiber linings more quickly If you’re having a shifting problem, come let us take a look at your fluid.