If you put diesel in a gas car, it runs until you use all the gas in the lines, then it will stop running. Need to drain the tank and all lines to get it running again. Idiot brother found this out when he stole my 5 gal can of diesel to put in his Chevelle he was working on. Gasoline in a diesel will cause massive preignition and possible serious engine damage. Gas will combust from compression while pistons are still coming up, attempting to force them back down
I know a guy that put gasoline in a diesel Superduty and drove it until the idiot lights on the dash lit up like a Christmas tree. Repair bill was going to be north of $20K so he traded it in on a new diesel Superduty.
Yes my teenage daughter put diesel in her old used Buick car. Cost us quite a lot but she knows the difference now and tells a lot of her girlfriends about it.