ok i know what a plonker but on a serious note just went and put 7 litres of unleaded in the wifes 2002 320td compact before i realised my mistake topped the rest up with 56 litres of diesel drove steady home all seems ok but intend to keep topping up at say evey hundred miles should i be ok ????? have seen it somewhere that i should add some oil ????? to the fuel tank and if so whhat oil???? hope you can help cheers Phil

Not sure about the oil thing mate, just keep topping it up with diesel it won't do any harm.

i am sure petrol in a deisel is not as bad as deisel in a petrol....it should burn off and make the insides nice and clean....lol

thanks Guys

Will probably clean-out the injectors dude... Don't panic ;)

Petrol and Diesel are injected at different times during the strokes. Swapping the fuels will cause premature ignition

Diesel is introduced during compression where as petrol is introduced before (on the down stroke).

Diesel is worse in a petrol engine as the spark alone isn't enough to completely burn the fuel so you get nasty smoking from the back. Can also damage the cat which is never good eh?

Petrol in a diesel engine isn't the worse thing in the world as it will still ignite under the high pressure but in large dosage/percentage causes the engine to run rough as the engine isn't designed to handle such a 'wollop'

as Dabsy said, will probably give the old oil-squirting injectors a good clean :D

Hope this helps

Daz

Swapping fuels can cause premature ignition ....better mention this to the missus.....lol

Swapping fuels can cause premature ignition ....better mention this to the missus.....lol

Damn right! =D

Wont do any harm at all!

Wont do any harm at all!

+1 I second that. Realistically, you will be fine. When you break it down to raw engineering, Fuel is Fuel. Just like how Oil is Oil. At the end of the day, you can run your Diesel lump on used chippy oil lol