I mistakenly put diesel fuel in my tank late last night.What should I do?
How much diesel did you put in ?
Tow it to a shop that can drain the tank and refill it with gasoline. That is assuming this Accord doesn’t have a diesel engine.
You don’t say and our crystal ball can’t determine if you are in the USA or Europe or elsewhere. The Accord was sold with a diesel in other markets than the US.