Hello yachtforums friends, I am under contract to buy a 1999 boat with a single-screw, 300 HP Caterpillar 3208T engine. As a part of the survey I asked for the transmission fluid to be tested during the oil analysis as I read that this is good practice. Unfortunately, the seller replaced the fluid just before the test. I thought that this would invalidate the results, BUT with just ~4 hours of engine time on the transmission, the transmission fluid analysis has come back with critical samples of lead. Plus some silicon. The report reads: Silicon (D5185 method): 20.30 (Caution) Lead (D5185 method): 31.60 (Critical) All other values are normal. I'm sure glad that I had the transmission fluid tested, but as a non-mechanical person I'm not sure what this means! Or what to do now! The report states "possible clutch wear. change oil, resample in 250 hours to monitor trends" but of course they just changed the fluid. There was no indication of clutch slippage or any other problem during the sea trial. I've gotten so much fantastic information by lurking on this forum, I wonder if it would be possible to throw myself on the mercy of the readers and ask for help. I need to figure out how serious this is and what steps I should take now, as a potential buyer with days before the final acceptance deadline. Also: if I go through with the purchase there is a long delivery voyage ahead as the next step. Obviously I don't want a breakdown to be part of that voyage. Can anyone with more experience share how they would react to this report? I would be so, so grateful for your thoughts.