Immediate Steps to Take
If you realize your mistake before driving away, don’t start the engine. Call a tow service to take your car to a mechanic. The mechanic will drain the tank, clean the fuel system, and replace fuel filters if needed. According to expert Jake, “Every second counts. Even without driving, diesel in the tank can start clogging the fuel system, engine, and injectors.” If you do drive off with diesel, your car will likely stall quickly and may not restart.
