My car ran out of gas in the road and a truck stoped and gave me a galon of diesel enough to make it to the gas station then I put on regular gas, will the diesel I put on my expedition mess up my truck?
It's amazing it even ran at all. Diesel fuel is oil and will lubricate moving parts better than gasoline. Probably the biggest concern, if you're in cold weather, is it might gel and plug the screens in the injectors. That will pass. There should not be any damage to worry about.