Stop at a multi-lane highway truck stop such as Love's Travel Stop or Petro near Ames, IA to rest for 20 minutes, refill Diesel fuel and check DEF levels. The stop provides safe parking for large motorcoaches and trucks.
Take a break at a large truck stop on I-35 south of Kansas City, such as Flying J or TA Travel Center, again resting for 20 minutes and refueling both Diesel and DEF for the second time on your trip.
Stop for a final rest break at a convenient multi-lane highway rest area or truck stop near Oklahoma City, OK, without necessarily refueling if tanks are full, stretch your legs and refresh before final stretch.