HTH's
SIDE TUBES / DAMPER DISK LUBE
THICKER - increases front traction - adds steering. Slows transition and softens steering in fast sweepers. If car is double steering on power use thicker oil to slow reaction time but if go to far you can see inside rear tire lift in tight corners.
THINNER - decreases front traction - decreases steering.
http://richardchang.com/hobby.php?topic=112setup