Originally Posted by jmfil

Supercharger oil change - Major lesson learned (have at least 10 extra drain plugs ready first)

RULE 1: HAVE EXTRA REPLACEMENT DRAIN PLUGS (AT LEAST 10) AVAILABLE BEFORE YOU REMOVE THE DRAIN PLUG. You WILL drop some, and they disappear easily. I have at least 5 still in my engine compartment somewhere. I started with 10. I have 5 left.

The supercharger drain plug is size: M10-1.0mm x 10mm. Here are other useful sizes that also fit (DIN 906 - DP10X1.0.OTSS, and a few more). However, M10-1.0mm x 10mm works perfect and is easy to come by- if you plan ahead and order from ebay. If not, good luck finding one, even in a major metropolis like San Francisco. Fastenall sells them, but not from every store.

GET 10 EXTRA BACKUP DRAIN PLUGS (size:M10-1.0 X 10mm) BEFORE YOU START THE OIL CHANGE!!!

YOU DO NOT NEED TO REMOVE THE SC PULLEY, even the larger stock pulley. The smaller aftermarket pulleys make access to the plug easy. However, the original equipment SC pulley is an obstacle, but can be done. Use a 5 mm allen tool with rounded or swivel tip. You will need the swivel to get the threads to line up. Have a telescoping magnet to hold/retrieve the plug. You may have to cut down a 5mm Allen to get the job done. So have plenty of 5mm allen screws available to experiment with, especially with rounded swivel tips.