Need help and options on fixing oil leak on oil return line on turbo. I have looked from the dealer to industrial hose manufactures locally with no luck. I'm trying to replace that rubber hose that connects the two piece tube together. Dealer can't even tell me diameter of hose so I'm going with what I was told by a friend that it's a 7/8" ID. So what are some options that has been used to fix this. I would be happy with just finding a place to purchase hose. The diameter of hose would be nice so I could just purchase more than the 4" from. Hose dealer online.