We are in West Virginia riding the Hatfield McCoy Trail system. Yesterday I noticed a smell like gear oil a few short times on the trail but didn't think anything of it. Today we took hard roads back to the cabin and I smelled gear oil strong. I looked back at my transmission vent and it was blowing out steam, when I put my hand under it I could smell gear oil strong! The temp is about 40 degrees out and it is raining so obviously humidity is high. Our average speed was about 25 so I was cruising in Low Range, after noticing the steam I changed to high range and slowed to about 20. It still steamed and stank the rest of the 4 mile ride. has anyone else had this happen?