(internals are stock 155,000) check oil light came on, checked dipstick no oil. put two quarts then shows overfilled and check oil light turns off. next day start car no oil pressure 0zero then few seconds later, back up to 50. check oil light back on. every 10 minutes or so gauges dips back to 0 and then i can hear tick,tick, tick from engine. but then gauge goes back to 50, about 10 min later back to 0. check oil light is on the entire time and dip stick shows no oil. but i know there's like 7 qtrs in there. help