rfsod48 Report post Posted April 3, 2017 Since we acquired coach used, I don't know if the transmission fluid and filters have ever been changed. The coach has 77000 miles on it and we are getting it ready for sale, is it time to have this service performed? Share this post Link to post Share on other sites
jleamont Report post Posted April 3, 2017 Roland, I believe the recommended replacement is around 25,000 miles if it has the regular fluid in it not the full synthetic. If equipped with full synthetic there is usually a decal near the fill tube or a tag hanging off of the dip stick. After you replace it with the full synthetic TES295 approved fluid the filters get changed at 75,000 miles and top it off, next service is at 300,000 for the fluid. Share this post Link to post Share on other sites
wildebill308 Report post Posted April 3, 2017 The first thing I would do is send in an oil sample to see if it needs to be changed. Bill Share this post Link to post Share on other sites
