[Kracka]

How oil looks after a change does not speak to it's quality. Lack of dark/black color could mean one of two things:

1. the oil isn't properly suspending carbon particles
2. you're running a very restrictive filter that filters down to the tiniest of particles

#1 is something to be concerned about since that means the grit is getting into your bearings rather than held away from the metal, #2 is only something to be concerned about if the overall area of filter media isn't large enough to support adequate oil flow.