My Bowtech is designed to have only pivots lubricated. Bowtech doesn't recommend any special oil but advices against WD 40.

My upper cam is squeaking just a tad before full draw.
Usually cams don't need any lubrication?
Should I lubricate, do You think that I can ruin it. The drawback of oiling is that the parts catch dust and sand and a pins bearing is likely to be fast destructed?
Your opinion? Thanks.