50,000 miles. I'll find the other info for you. I have seen it.
I believe you can you GM supercharger oil (@ $5/4oz) or Ford supercharger oil (pn XL-4, which is more than the GM stuff). Probably need 1.5 bottles. Here was a post from another site someone made:
"I have been using the GM Supercharger oil. It costs $4.98 a bottle and you need to use 1 1/2 bottles.
I don't remove anything but the CAI to get to it. I use a 3/8" id. hose attached to a turkey baster to remove the old oil and just a piece of the same 3/8"id. hose to fill it.
I use a 6mm ball end T-handle allen key to get to the cap screw.
I fill it till the oil comes up to the first thread of the fill hole so the 1 1/2 bottles is an approximation.
Also if you overfill it you'll know about it since it will leak out of the vent hole located in the center of the blower snout bolt."
Others I have read use the GM stuff also.