Will it ruin my car if I am using diesel instead of regular unleaded gas in car?

Answer by  monocogger (432)

You cannot run a gasoline engine on diesel fuel. You must drain the fuel and replace with clean gasoline then purge the rest of the fuel system with a cleaner. Most likely you would have to replace the spark plugs and fuel filter as well.

Answer by  Amber40 (24961)

Yes, diesel fuel will ruin your car. A gas engine cannot burn diesel fuel. You need to drain you entire fuel system and flush it out with clean gas.

Answer by  MechMan3 (885)

Yes. You need to drop the tank, get all the diesel fuel out, flush and clean all the lines, and refill it with the proper fuel. It can be fixed but wont be easy.

Answer by  Amber40 (24961)

Yes diesel will be bad for you engine. It will not burn in a gasoline engine like gasoline does. The fuel system may just need to be flushed but it may require the engine to be dissemble and parts replaced or cleaned.