somewhere i was saying i put in synthetic, 10.30w, with a spash of seaform, an mystery oil, an ticking left, so I then drained that, an put in 10w30castro non synthetic, 2 bottles of auto rx, an ticking comes back at start. when i shut it off after turning it on, an restart immediatey, ticking goes away, for the most part. going to run this about 3000, an see what happens in between. an its got about 180000, on it. an, when i put the synthetic in it with the mystery oil an seaform, the front seal leaked more, an the rear seal, started leaking, but had not the ticking, as i had before.