I’m trying to find an oil leak in a 2002 LS1 donated from a Camaro. I’m running it in a 260Z. It seems to be up front but I’m not sure if it is the front main seal or the pan. I have dye for the oil, a black light and the engine all cleaned up. The leak seems elusive without driving the car but other factors are keeping it off the road. I’d like to temporarily overfill the oil pan above the gasket and just let it sit a while. Any idea how much old I would need to add to get it to this level?