Gadget and I had this discussion this weekend. He was saying that the superchargers take 150ml, which is just under 5 ounces. He has two of the grey, 1st Gen superchargers. He urged me to call Magnuson and get some more oil to get it up to the proper level. Well, I went back and found this thread and began to wonder which is the real answer, or should I say best answer.
I called Magnuson today and here is what I was told. (I wish I caught the name of the guy I talked to, I think it was Troy or Tony or something similar.) Anyway, I told him what I had and without skipping a beat he said 4 ounces is fine. I explained that one friend said 4 ounces (Jeff the Marmot, with this thread as my source) and another said 150ml, which is just under 5 ounces. He said 150ml or 5 ounces is fine too, but they fill them with 120ml of oil at the factory. Apparently this isn't the first time this guy has heard the 150ml vs 120ml debate/discussion. He told me I am just fine with 4 ounces of fresh oil. To me, the difference between 4 ounces and 5 ounces is significant... it is a 25 percent increase. Regardless of how much fluid we are actually talking about, that is a significant difference. If we were to overfill our engine oil by 25 percent, there would be a good chance we could damage our engines. Oh well. If the garbage men haven't taken it away yet, I'll dig the old oil out and try to measure how much I actually got out of the supercharger.
On to other supercharger news.... Since I had the guy on the telephone, I asked him about how long the service interval was for the nose gear. His answer was that the nose gear wouldn't need service for another 40,000 miles (I told him I already had 40,000 on the charger). He said what is more likely to need servicing is the Front Nose Cover Bearing. It is the bearing directly behind the seal at the front of the supercharger by the belt. Since it has such stress on it because of the belt, I'm not surprised it might need service first. When I asked how long it should go between servicing, he told me it would be rather obvious when those bearings went out. When that happens I could remove the front portion of the supercharger, mail it to Magnuson and for $175 the would do a complete service to include a new oil pack. I guess oil pack means refill....
BTW, when I drained my oil, it looked a nice honey color, not anything close to Pepsi. I am guessing I got out almost all of the 4 ounces they added at the factory.
-Sherpa
