Right, thought i'd reply to this thread to give my story.
Three weeks ago I did the same to my wifes Golf TDI. In fact I put less petrol in - around £2 worth and topped the rest up with diesel. I did this because I have got away with it in the past with my own Renault Megane dci.
Around 40 miles later the turbo blew on her way home from work.
£1300 repair bill and the wife is still not talking to me. Happy with the not talking but £1300 is a lot of money!
Take from that what you will!
Neighbour is back and 700 miles later nothing to report and car is running fine.
If anything happens in the longer term I'll repost.
DCW - sounds unrelated. Fuel goes nowhere near the turbo.
Fuel goes nowhere near the turbo.
Petrol in the diesel does increase the exhaust gas temperature though. You can't run a derv turbo on a petrol engine for much that reason.
£2 worth tho? Plus, stock diesels are run way below dangerous EGT levels. That's why you can get so much more power with remaps.
DCW - sounds unrelated. Fuel goes nowhere near the turbo
less than 2l in a 55l tank...?!
No petrol will sit on top of diesel, when it runs out it will pull the petrol in and bugger the engine, one of the mechanics in my old work did it to 3 new cars and they all broke down at the exact same point while on way to new owner
No petrol will sit on top of diesel
Petrol and diesel mix - especially if you put 2l in first then mix it all up by adding 50l diesel...
We got our first diesel brand new last november. Not had it long and the wife put prob less than half a gallon of petrol in, then brimmed it on the advice of person at the petrol station she reckoned. It has now done 14k miles with no probs so hoping we've got away with it but you got me worried now!
Edit: from AA website:
Generally a small amount of incorrect fuel should not damage the engine as long as you have not started the car and top up fully with diesel fuel.If you've added more than 10% (5 litres in a 50 litre tank) petrol – Drain the tank and refill with diesel
If you've added less than 10% petrol (5 litres in a 50 litre tank) – Top up with diesel and run normally unless the manufacturer has advised otherwise
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