My buddy is buying a 199t Cummings twin turb, 60 pound valve springs, 150hp injectors, 100 plate, and 4k spring and some other stuff, he says oil has come out dip stick really getting on it, but only happened couple times. Is this bad or just a thing revving up that hi??? Thanks

 

Engine not venting properly or excessive blowby. With the truck at temperature lossen the oil fill cap and see how much mist/blowby is present.