[SampleMan]

Trying to run a gasoline engine on diesel will just result in it not running or barely running.

HOWEVER, putting gasoline in a diesel can have some very expensive results.

[steve86]

No, they cut diesel with gasoline all the time. Especially old, stored diesel they are rehabilitating.

Gasoline engines won’t run at all on diesel but a small amount of diesel mixed in the gas doesn’t matter — it’s just extra lubrication like 2-stroke premix, but it would damage cats.

The one thing you really don’t want is ANY gasoline — even just drops — mixed into kerosene for a kerosene stove.

[editor-surveyor]

Putting diesel in a gasoline engine could damage lots of seals, hoses, and o-rings.

[cuban leaf]

Trying to run a gasoline engine on diesel will just result in it not running or barely running.

HOWEVER, putting gasoline in a diesel can have some very expensive results.

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That’s what I’ve heard. My engine would start and idle with diesel, but if I touched the gas pedal it would die. That may have just been some residual gas, though. It did start right up when I drained the diesel, though.

[KarlInOhio]

HOWEVER, putting gasoline in a diesel can have some very expensive results.

I saw the results of putting car gasoline into a prop plane's engine which needed 100 octane avgas. The premature detonations tore the pistons to hell. The wife of the pilot brought in one of the pistons for a little show and tell at work. I would expect gasoline in a diesel engine would be similar if you could get the engine started.