[383Ram]

You can use a 10w30 or similar oil, even a little lighter is ok--just something on there. Something that basically wont get in the way but will stick to the surfaces.

Also, make sure you oil the threads of the fitting when assembleing -AN fittings into hoses. Pushloc stuff i just use something real light like WD40. On regular -AN stuff i use some 10w30 in a squirt can i have. It does two things, makes it easier to assemble, and later on if you need to make new hoses, it comes apart alot easier also and doesnt wreck the fittings so they can be reused.