My 2020 has 1200 miles on it. At 500 I swaped out all fluids and grease. I don't trust whatever fluid was usedI will reach out to Sherwood to see if they know which one it is. Anyone else had a leak on that seal? Mine has about 1100 miles. After noticing the leak I also found the t case fluid to be very low. Decided to drain and refill. Factory oil was trashed with metal shavings. You think that caused the seal to fail? I have a feeling the seal may be salvageable after cleaned up but I hate to take it apart without a new one on hand.