am i able to run 10w-30 oil in the supercharger?

is there anything else i need to know about supercharger maintenance?

There is some debate out there with little more than circumstantial evidence about which oil. GM will tell you to only use the specific supercharger oil, available from them or a number of other sources. Me, I stick to the supercharger oil. Warning, it'll smell pretty bad because it's made of animal fat.

Check for grinding, slop and play in the pulley. Grinding and/or non-rotational slop would be a bearing issue. Rotational play would be a worn coupler. I suggest taking the belt off before ordering any oil or other parts and check it out.

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WHITE WHINE - IT'S INTOXICATING. 1992 SSE Supercharged 236.26 ci (.040 Over)
15.090 at 90.2 MPH on old engine w/ slipping trans & melted O2 sensor - Gen 3 M62 and matching TB, Gen 2 Pully, Zillamotorsports Ported LIM, YT 1.72 Roller Rockers, SII FPR & Injectors, Easy Performance Gen 3 Air/Fuel Calibrator, Hypertech Thermomaster chip w/ 160 Thermo, TransGo Shift Kit, Infinity/Pioneer Speakers and 10" Subs, 1300 watts, 140 amp Alternator, Ricepipe CAI w/ heatshield, Pilot Angel Eye Foglights, Clear Corners, '02 17" Chrome Bent 5's, Magnaflow F-Body Muffler and Hi-flo Cat, McCoy Motorsports Ceramic Coated Ported Exhaust Manifolds, Fan Override, PowerSlot Slotted Rotors.
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As said above, remove the belt and check for slop. You more than likely will be in for a coupler replacement, at which point you'll lose all the oil out of the thing anyways. You can get the GM Supercharger oil in a number of places, so I'd just order the bottle for peace of mind.

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-Car Guy Carl
"Penelope" - 2003 SLE - 185k Miles
"Sydney" - 2000 Honda S2000 - 60k miles