I took my dad out for his first trail ride in my FJ40. He's visiting from Michigan and my 40 never seems to be 100% mechanically sound when he's here; this trip was no exception. The rear main leak has not improved with 2 bottles of stop leak, but I packed extra oil and kept an eye on the oil pressure gauge. We ran the Ringing Rocks trail clockwise. It was 161 miles driveway to driveway, and we used 2-1/2 quarts of oil. We lost the oil fill cap about 15 miles into the trail and got a pretty bad vacuum leak that made it tough to idle, but I just used the choke to keep the RPMs up a bit. We pulled winch line once. I probably could have figured it out without the winch, but there was a good tree 50 feet directly in front of me. I couldn't find an open parts store until we got back to Belgrade, but replacing the oil fill cap fixed the idle issue. The new cap fits so much better that I wonder if I've had a vacuum leak there for a long time. We had good interactions with most of the other trail users (trucks, motorcycles, and 4 wheelers), but the SXS drivers were 50% okay and 50% completely lacking in trail etiquette. I don't know what the deal is with SXS drivers, but they aren't doing themselves any favors.