11-21-2005, 01:34 PM
the black oil is from rubbing in the stock shocks. Best way to get rid of that problem is to get the traxxas gtr shocks. After 3-4 gallons my oil was still clear. Actually from the dirt dawg race i won in spring till the money race at the dd track was the same shock oil and it was always clear and never got dirty. I finally changed it to a lighter oil for another setup but the gtr shocks are a must have for racing. Super super smooth and really make a night and day difference with your trucks handling.