GO 75W-85 Synthetic Racing Gear Oil Racing GO 75W-85 synthetic gear oil provides race proven durability and dyno proven power gains from reduced friction and parasitic drag. Fortified with high levels of moly friction reducer. Contains Limited Slip additive. Formerly referred to as Super Speedway Gear Oil. Recommended for Circle Track & Road Course applications where prolonged speed and temperatures are encountered. DRIVEN GO 75W-85 Synthetic Racing Gear Oil is formulated with a propriety additive package for Racing applications only. Not formulated to API gear oil specifications. For SDS Tech Data Sheet, click here