Does Royal Purple smell like burning rubber when its bad?

[halistan]

I am certain this is going to come across as a stupid question but i'm in unfamiliar territory here.

Lately I've had an awful 'burned rubber' smell coming from my car. I can smell it both inside the car and outside and when I go home it makes the entire garage smell like it.

I just had the AC filled up and I found that the AC belt wasn't tight so it was slipping and I thought that was where the smell emanated from. I tightened the belt (this was a month or two back) but i'm still getting that smell when i drive the car.

Yesterday I was looking all over for what it could be and decided to check the oil level of my supercharger (Lysolm twin screw) and it was about half full and when I took the filler screw out the burned rubber smell got worse.

It is filled with Royal purple so is it possible that is what is burning? I can't seem to find anything else that might be causing it.

Any thoughts?