you will use less gas if you do not move ( set in park) but life time MPG will go up.
If the trip is going to use gas later then don't sit it out.
and If you are almost 100 electric others have said better to move and get higher RPM and a real run of the engine.
If the trip is going to use gas later then don't sit it out.
and If you are almost 100 electric others have said better to move and get higher RPM and a real run of the engine.