Might be refrigerant oil. Refrigerant itself has no odor and is a gas, but the oil smells and it's oily.
As for the hose, they sell things that look like a spring, you put it on the outside of the hose, and you can bend it and it will force the hose to keep that shape.
amazon link
For a smaller hose, like 3/8" you can use my trick - get the same size metal brake line, make the bend in that, cut out only the bent section, grease it liberally, and shove it into a regular hose up until you get the bend where it needs to be. Careful not to leave any sharp edges on the metal tube ends.
Also,
is this the hose?