Results on a 2010 stock block having the original SC upgraded to a VMP Gen 2R along with some other top mounted mods. After 25K plus miles I have never had a single drop of oil accumulate in the drivers side separator....total waste of money. On the other hand the passenger side is emptied several times a year being a third to half full every time. If you have an older GT500 like mine, don't waste your money on the driver's side unit.