Diesel in a Gasoline Tank on 2006 Nissan Sentra

My daughter accidentally put 3-4 gallons of diesel in her 2006 Nissan Sentra. She had a quarter tank of gas in her car already, when she caught the mistake, she switched to gas and filled the remainder with 5-6 more gallons of gas. So basically she has 3/4 tank of gas and 1/4 tank of Diesel. She drove approx. 10-15 miles since without any issues. What problems may this cause, should she continue to dilute the tank with regular fuel or should she have it pumped out?

Asked by for the 2006 Nissan Sentra
Probably should have a shop drain this and it should be fine after that and you can find a shop here give them a call and ask them about draining the fuel tank