I just recently got my '99 GTP. And i was wondering if i should change my supercharger oil myself? or should i just go to a dealership?

If i should do it myself... how do i do it?

I've seen more detailed write up's but this one should do. It's a really simple task.

http://www.thepontiacgtppage.com/m90oil.html

DIY.

I talked to the dealership in my town and they say it isnt that necessary to even do it. I was told that there are plenty of supercharged motors on the roads right now with 100k miles plus running around without ever having the s/c oil changed. Just a thought, I bought the oil for mine but havent changed it yet.

My service guy also told me that he wouldnt take my money to do something so simple and he explained how to do it. Should be no problem, if your car har 50k plus i would say go for it!

Also if you havent purchased the oil yet I got mine cheaper at the local chevy dealership than at pfyc.com and it is the exact same stuff.

use only GM Supercharger oil. If you put anything else in there you will take the supershager out. I have seen them blow there superchargers up just by topping them off with regular motor oil, mobil one, trans fluid, power steering fluid. I have seen my fair share of them coming in my dealership because of that.