With the current trend being more and more racers using a front gear diff on their touring cars instead of a solid axle, 3 Racing have developed a Ultra High Viscosity Gear Diff Oil for use with a front gear diff. When using a front gear diff, racers tend to use high viscosity diff oils up to 100000 Wt, through our testing, the 3 Racing Ultra High Viscosity Gear Diff Oil provides the best and most consistent handling in most condition giving it solid axle like characteristics while being easier to drive and less susceptible to damage under heavy impact. The 3 Racing Ultra High Viscosity Gear Diff Oil was formulated to provide the best gear protection and consistent viscosity across the working temperature range on EP touring cars.