What happens when you put in diesel fuel instead of regular unleaded gasoline?

Answer 1

The answer to the question of: "What happens when you put in diesel gas instead of regular unleaded?" is this...

Diesel fuel (engines) rely on compression to ignite it. It isn't necessarily flammable.

Gasoline relies on a spark from a spark plug. Diesel engines have a higher compression ratio than gasoline engines do, and thus provide more torque to the drivetrain (that's why 18 wheelers use diesel engines, instead of gasoline engines).

So, if you put diesel fuel into a gasoline engine, there's not nearly enough compression to ignite the fuel. Probably the only thing that would happen is that your gasoline car or truck would run very rough for a time before all of the diesel fuel runs out.

If you accidentally put diesel fuel into a gasoline fuel tank, the best thing to do is siphon it out.

Finally, I can't imagine anyone accidentally putting diesel into a gas car since the diesel nozzle at the pump is a lot bigger than the gasoline nozzle...and it's that way for a reason. ;-)

Though it does still happen every day when people fill up their cars without thinking exactly what they doing...

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For more information please see the answer to the Related Question shown below.

I did this stupid thing today. It costs me 800 USD in the Toyota dealer. I did some internet search earlier. It would cost a lot fewer if you go other places. It would be no more than 500 USD. Be aware of this. Good luck!