1. When you removed the previous hose, how difficult was it to get off?Yeah, it's getting a little stretched out trying to get it to fit, so I may resort to soaking it in steaming water to see if that helps the last little bit. Yet, the other 3 hose ends (2 at the separator and one at the cam cover) were perfect fits, so this one is off for some reason.
2. Did you compare the two hoses?
3. It's possible that the original was made to be a snug fit so that it wasn't blown off while driving and spewing oil.