Which is the worse case… filling a diesel powered car with petrol and running it or vice versa?

What components are damaged in each case?

I’m not sure that the petrol engine would even fire up.

From what I’ve read about these situations petrol stuffs up the diesel pump and diesel damages the catalytic converter.

Ian said:

I’m not sure that the petrol engine would even fire up.

From what I’ve read about these situations petrol stuffs up the diesel pump and diesel damages the catalytic converter.

Can you tell if you have damage to the converters? What does the car do?

I think the diesel may cost more to fix than the petrol engine.

Supplementary –

In the second case, with a modern diesel, I’ve read that merely unlocking the car starts the fuel pump running and causing damage. Is there some sort of pre-heater in these engines as well?

Can you tell if you have damage to the converters? What does the car do?

Stinks I think.

poikilotherm said:

I think the diesel may cost more to fix than the petrol engine.

Yeah.

Apparently in the petrol into diesel case it’s just a matter of adding some engine oil to the tank and it’s runs normally and doesn’t bugger the fuel pump.
Not sure about mixing it though… maybe drive over some speed humps or a bumpy road.

if you put into a motocycle engine it runs but is very difficult to stop

i was watching someone trying to stop the engine

wookiemeister said:

if you put into a motocycle engine it runs but is very difficult to stop

i was watching someone trying to stop the engine

You mean diesel into the bike?
Maybe it starts dieseling.

:)

I put unleaded petrol in my diesel boat motor. Inadvertently doh.

Engine still ran but at reduced revs.

>>I put unleaded petrol in my diesel boat motor. Inadvertently doh.

Hahahahah, what a moran.

Diesel into a petrol car produces LOTS of smoke out the exhaust pipe.

A naval battleship would be proud of a smokescreen that size.