The immediate consequences could include:
* Engine Misfire/No Start: The engine likely won't run properly or at all. Gasoline won't ignite efficiently in the diesel combustion chamber.
* Damage to Fuel Injectors: Gasoline can dissolve seals and components within the fuel injectors, leading to expensive repairs or replacement.
* Damage to Fuel Pump: The gasoline can damage the high-pressure fuel pump, a critical and expensive part of the diesel fuel system.
* Damage to Engine Cylinder Walls and Rings: Gasoline burns differently, potentially causing lubrication issues and scouring the cylinder walls.
* Catalyst Damage (DPF/SCR): The gasoline will not combust fully, potentially leading to clogging of the Diesel Particulate Filter (DPF) and damage to the Selective Catalytic Reduction (SCR) system. These are expensive components to replace.
In short, it's catastrophic. Do not attempt this under any circumstances. If this happens, immediately have the truck towed to a qualified mechanic. The entire fuel system will likely need to be flushed and potentially replaced to prevent ongoing issues. The repair bill could be tens of thousands of dollars.
