I have a 2006 Magnum SRT8, 6.1 L engine, a little over 111,000 miles. Yesterday afternoon, when the car is idling (regardless whether in park, reverse or drive) the low oil light comes. When the rpm gets to 1200 and higher the oil light goes off.
1. Is the oil pump going or is it a sensor problem? Is this a issue with the Hemi engines of that time period?
2. Will a service diagnostic check tell me what the problem is?
3. Is it okay to drive and not harm the motor with this issue?

Your help is greatly appreciated.

Bill