I did the sea foam in the brake booster,gas and oil! Let me tell ya.......I think it made the ticking noise worse in my case!! <img src="/forums/images/graemlins/frown.gif" alt="" />Try doing a flush with gunk motor flust then changing the oil.When I put the sea foam in the oil if I tried to go over 65mph my motor sounded like it was going to blow up!! <img src="/forums/images/graemlins/shiner.gif" alt="" />I then did the flush and changed the oil and it makes no sound at all!!Just turned 160k on 93 troop.