The Accusump™ Turbo-Oiler solves the main cause of turbo wear and failure by supplying a pressurized discharge of oil to the hot turbo bearings during spool down. Their design allows them to deliver the correct amount of oil for over a minute after shut down, when the engine is not supplying oil to the turbo. By lubricating and cooling the bearings, the turbo after oiler prevents coke build up, (which limits oil flow).