A leading one correction circuit receives a significand from a floating point adder and a corresponding leading one prediction from a leading one predictor, and determines if the leading one prediction is correct. This combination of ingredients provides improved oxidation control and friction modifier performance to the lubricating oil. The means for connecting may consist of either first and second routers respectively connected to the first and second VLAN-capable switches and interconnected via a T1 line or an ATM connection. The turn-up portion includes a concave segment that begins in the bead region and ends short of the turn-up end or at the turn-up end. The skate guard preferably includes lateral stabilizing ball and heel segments for added stability when walking and installing the guard.