I use the Doo Synchromesh Transmission Syntenic Oil. Thats the recommend type of oil. Changed it 2 times now. I have 6000+ KM pulling a grooming drag for snowmobile trails. Would be cheaper to use your Oil.
The Expedition with high ,low and reverse takes a special gearcase lubricant just to let you know. They want you to take exhaust muffler out to check and fill.
Its a nice place out East. We have friends and family in Nova Scotia. Neighbor here is from St Johns and he tells stories of the area. Good luck Ian and Arlene. Hope you do make it back to some Snow and Mud fun events.
Im a utility guy. I would like to see power steering on the DOO wide body Gen 4. Maybe a dedicated pulling chassis as well as the old Groomer Special from Cat and Yamaha
Now continue with Mountain Sled Talk