I have been fighting never ending leaks on the front and rear of the oil pan on my 383. I have had the pan off three times, the last time I used a different pan and used another new one-piece gasket. And the @#$%&*+ thing still leaks. The first time I used no silicone. The second and third time, I used silicone in the corners only. I replaced the pcv valve with a fixed orifice type unit, and that made no difference. Do any of you have recommendations on sealing this thing up? I am going back to dino oil with a zinc additive as I only had an occasional drip before I switched to synthetic.