My i35 has a rubber hose connecting what looks to be two oil lines right under the oil pan. Its a short rubber hose connection with a slight drip. Ive noticed that the hose looks to be swelling up and want to replace it before it possibly ruptures, if anyone knows if there is sopposed to be a metal line or rubber line there. And part number.

 

It's a coolant line. Replace with a piece of coolant hose from the store. Bend the metal lines straighter, too. They always seem to be off from the factory.

 

ok cause ive seen other vq engines in the junkyard with the same rubber hose connection, was at the exhaust shop today to get some work done and they brought that to my attention that the oil cooler hose was swelling up, then they didnt want to fix my car lol.