If its a 318 just run it till it pukes. My 79 318 truck had no oil reading pressure at idle due to clooged pickup tube and I ran it for month's before I fixed it.Two lbs is too low but if it runs kick it in neutral when you stop. Chrysler service rep told me that they would not do anything to engine that had 3 lbs of pressure at idle That it would still run and call them when it had 0.