I just bought a 1997 Kawasaki KX60. The bike had not been run for a few years. It needed a carb cleaning so I did that and changed the fluids. The manual said to use SE Class SAE 10W30 or 10W40 oil in the transmission. Rather than drive an extra 20 miles to the motorcycle shop I went to O'rielly Auto Parts and they said their O'rielly 10W30 motor oil would work fine so thats what I used. I ran the bike a couple of hours and noticed the oil looked milky. I just drained the oil. It does not seem like there is water in the oil but it has a very milky color. This time I went to the motorcycle dealer. I am going to replace the oil with either Silkolene Comp Gear Semi-Synthetic Racing gear oil or Maxima 80wt MTL Fluid. I hope I didn't screw something up by using regular automotive oil. What do you think.