New Prius owner...got "red triangle" the first day I owned it!

"Hey Vern! Go Fill Up that there Prius...and just use the jug's-o-gas we got in the back!"....

Sure it's possible...but highly unlikely...most dealerships have a deal with a nearby station and fill there vehicles conventionally.

 

Yup, the different fill nozzle sizes are there to prevent idiots from messing up. It's the bloody idiots that will still put the diesel fuel in.

In my experience, putting diesel fuel in a gasoline powered car actually does good, once you get it out and the car running again. The diesel soaks into engine deposits and cleans them out of the engine once the engine is running properly again. I see no reason why it would harm any other part in the fuel system or the O2 sensor.

 

You probably have nothing to worry about but I'd insist on an extended warranty from the dealer even if only for "parts related to fuel system"
If the dealer is comfortable with the repair he will have no concern about putting your mind at ease.
:welcome:

 

Thats exactly what I thought too. And even if they did have a can hanging around filled with diesel it would have to be very clearly marked to prevent exactly what happened again and again.

The real shame is the op never got a copy of the codes it threw so we could know exactly what is was complaining about.

No matter how you cut it they turned the village idiot loose on the op's car.

 

I have found no Federal standard for fuel pump nozzle sizes. It appears to be regulated by individual states. Arizona for one does not; maybe Georgia is another?

Of course nozzle size notwithstanding a determined goober can put any wrong thing into a gas tank.

 

Starting in 1975 when unleaded gasoline started to be sold, gasoline pump nozzles moved to a smaller size, while the fuel tank opening for unleaded gasoline engine-powered automobiles was restricted to only allow entry of the small nozzle. This was done by Federal mandate.

The major harm that might be caused to a gasoline engine if diesel fuel is introduced is hydrolock: where sufficient diesel fuel enters the combustion chamber and is compressed by the piston, thus causing damage to the engine. That clearly was not an issue with the OP's situation.

The following article may be of interest:

[ame="http://en.wikipedia.org/wiki/Filling_station"]Filling station - Wikipedia, the free encyclopedia[/ame]

"Motorists occasionally pump gasoline into a diesel car by accident. The converse is almost impossible because diesel pumps have a large nozzle with a diameter of 15⁄16 inches (23.8 mm) which does not fit the 13⁄16-inch (20.6 mm) filler, and the nozzles are protected by a lock mechanism or a lift-able flap. Diesel in a gasoline engine however — while creating large amounts of smoke — does not normally cause permanent damage if it is drained once the mistake is realized. However even a liter of gas added to the tank of a modern diesel car can cause irreversible damage to the injection pump and other components through a lack of lubrication. In some cases, the car has to be scrapped because the cost of repairs exceeds its value. The issue is not clear-cut as older diesels using completely mechanical injection can tolerate some gasoline — which has historically been used to "thin" diesel fuel in winter."