I have heard that maxima 5wt is a good choice for the forks, and the store has that oil, so I was considering picking it up. Can I add 5wt to the inner and outer tubes, or is different oil required for each? I preferably like to keep things simple, so if it's okay to add the same oil to both, then awesome. What oil works best for the rear shock? Will maxima 5wt be okay, or is a different oil needed? Also, will I need to take the shock to a shop for a nitrogen refill? I am 162lbs, and ride a 2007 RMZ450 with stock showa suspension. This is the first time I have attempted this, so any hints and tips would be nice.