Eaton/Magnuson (the manufacturer) says 100K miles between oil changes but I would recommend 5-10K as it is relatively small amount of oil and check it at least monthly - it should just run out of the hole when the plug is removed. There may be pressure build up inside but that is normal and nothing to be concerned about.

Check belt tension as per install instructions monthly. If you drive hard, change your fluids more often especially oil and transmission fluid. All fluids should be synthetic already or it would be a good idea to switch. Nothing else - that is the beauty of a Supercharger.

Most all MP-62, 3rd generation roots style superchargers will make some rattle at idle but it is no big deal. It may not at first but will more than likely later. Don’t freak, it a normal thing especially if it goes away when you speed up the engine over idle. If truly concerned, call Jerry @ Magnuson to alleviate your concerns .