When i got the oil changed a week ago i used a engine cleaner, at idle it dropped to 40-50after they changed the oil it was back at 80 at idle i put in an engine restore any help would be greatly appreciated
First thing I would check is the oil pressure sending unit. The engine cleaner may have damaged the unit. Replace the sending unit. They are relatively inexpensive. This is most likely your problem.
Next thing I would check would be the oil pressure relief valve. This is usually located inside the engine on or near the oil pump.
