This question is for Randy Smith, I just picked up a 40th aniversary Fox .35 off Ebay It was all castored tight and pretty messy. I soaked it in straight methanol for a few days gave it a little heat and she loosened right up. I disassembled it and scrubbed each piece a few times in methanol blew everything out oiled it and reassembled it . I think it was only run a few times and is not fully broken in. Do you recomend your Aero One during break in on A Fox or do you wait until its broken in to add it to the fuel. I am a diesel mechanic and we generally don't run synthetic until after 2 oil changes as we have had trouble with the rings seating, I was wondering if your additive would prolong the break in on a Fox piston & liner. Thanks T.J.