In a message dated 1/12/05 7:34:52 AM US Mountain Standard Time, yenko117@yahoo.com writes: > Sorry, as I know we've been through this before, but > can someone please remind me what material that the > black O-rings/Oil Cooler Seals with a white dot on > each, are made of? > Poly Acrylate. They aren't much better than the original Buna rubber ones. Go for Viton. Regards, Bob Helt