AskPatty's Tips for Driving with Dogs -- Tip #5
DON’T: Feed your furry friend in a moving vehicle.
Even if it's a long drive, make sure you schedule regular food, water, and potty breaks.
Your pet's travel-feeding schedule should start with a light meal three to four hours prior to departure.
While many dogs travel best with an empty stomach, others respond better after eating a light meal -- especially dogs that have one meal per day.