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Urgent- diesel with petrol mix


Calm Chris
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I managed to do this a few years ago in Mrs Diesels company Passat (ironically on the way home from a TSN meet). Put 5 litres of petrol in before I realised. Filled the remaining 65 litres with diesel. Stopped off at halfords on the way home and bought some diesel additive and added this mainly for its lubricating properties. For the next week I kept adding diesel after every journey. And the car ran superbly for the next 50000 miles. Obviously this was a much lower ratio than you are talking about Chris, and it was a PD rather than a common rail engine.

Did pretty much exactly the same with an Audi A4 PD - did 100K+ miles no problems

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The important thing to remember is not to take it to a main dealer.

They will change everything, just in case.

However the likely hood is you can top up with diesel and never know any difference, why pay for a new tank, fuel lines, pump, injectors etc. etc. in case it knackers them, wait and see.

If it does then replace, but don't do it 'just in case'.

I filled up our ML with 10 litres, added another 40 litres of diesel and some aviation oil (to help lubricate things) and it was fine, never even a splutter.

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