Bah, my supercharger front seal has just started weeping after only 3 months of operation. Grr.
And this was after I went through the trouble of having it all professionally rebuilt with new bearings and seals throughout before I put it into the truck.
The work was done by Watrous Diesel, a long time, respected local shop that rebuilds huge superchargers on BIG GM diesels all the time.
However, I can't remember the brand name of the bearings and seals. (I had bought and supplied the parts to Watrous)
SO, I just ordered a new SKF Viton seal, and a couple of bottles of oil and I'll change the seal myself.
Viton has higher temp resistance than nitrile, but I'm not sure of the material until I remove the old seal.
Dammit Janet!