While driving southbound on i-75 north of north ft. meyers, fl the vehicle stuttered slightly and stalled, with just enough time to pull to the right shoulder and park. it would not restart and appeared to be out of fuel, though the gauge indicated approx. 1/4 full. the mazda emergency road service number was called and they dispatched a service vehicle. at the same time the mechanic arrived, a fl road ranger also arrived and put one gallon of gas in the vehicle. we were able to restart the vehicle then and drive to the next exit where we put in just 10 gallons to fill the tank completely. we then proceeded to an auto parts store (at the recommendation of the mechanic) where they performed a digital engine scan and found there were no malfunctions detected. we requested our dealer perform this scan again the next time we went in for service on may 16, 2019. this dealer in columbia, mo (machen mazda) claimed they found no problems.)