It would have to be a special build or a replacement engine.
it depends on what year and model, i am not sure but i know a few are. if your engine gets off timing, then it will damage the valves, which is a pain to fix but is possible. if your worried about...
6 quarts
There are four engines.
If it is a new generation hemi (5.7, 6.1) it will come on because these are not flex-fuel vehicles.