- Watch this. (bell ringing) (dogs barking) They're running for new Gravy Train. New improved Gravy Train. Gains just out of the natural beef flavor so it tastes better, wet or dry. Improved Gravy Train even looks different. Tests show dogs prefer its new beefy taste over old Gravy Train 3:1 Fully nutritious too. New Gravy Train dog food, a big improvement in taste. (bell ringing)