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Pierce.M



Member Since: 17 Jul 2012
Location: Newcastle
Posts: 16

England 
Wrong Fuel !
Evening all,

Yesterday I gave my Defender to a neighbor as he was moving house and he needed something that could tow ... long story short he returned the car with petrol in ...

There was a quarter of a tank of diesel when he filled up.

Anyway I was obviously unaware that he had done this so I drove it around 8 miles before it started to cough and splutter, I pulled over about 800 yards after the first cough and turned the engine off.

AA came and drained the tank and got me going again, I've since given her a good run (100 miles) and all seems fine.

I'm wondering ... aside from strangling my neighbor in his sleep tonight, is there anyway of telling if any damage has been done?

Any advice is much appreciated!
Post #374878 28th Nov 2014 5:33pm
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Pierce.M



Member Since: 17 Jul 2012
Location: Newcastle
Posts: 16

England 
Perhaps a service wouldn't go a miss?
Post #374879 28th Nov 2014 5:36pm
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munch90



Member Since: 26 Oct 2013
Location: guildford
Posts: 3558

England 
keep it topped up with diesel , when it drops to 3/4 fill up again then when it drop to 3/4 again top again just to get the level of petrol down and down as soon as possible
Post #374884 28th Nov 2014 6:01pm
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Wangers



Member Since: 19 Jan 2013
Location: West London
Posts: 265

United Kingdom 1995 Defender 110 300 Tdi CSW Aintree Green
Assume he's paying your AA bill and any further service costs and a full tank of Diesel, surely ......
Post #374891 28th Nov 2014 6:41pm
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Fujixs90



Member Since: 19 Jun 2014
Location: Yarm
Posts: 28

United Kingdom 2013 Defender 90 Puma 2.2 XS CSW Fuji White
Replace the fuel filter and put a fuel injector cleaner through as the whole system will have scarf in it if your drove it for about 8 miles.
Post #374895 28th Nov 2014 6:56pm
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Pierce.M



Member Since: 17 Jul 2012
Location: Newcastle
Posts: 16

England 
Many thanks for the quick replies!

Wangers - i can tell he feels like a real Muppet! He has paid for everything thus far but he is a good friend so apart from bring it up every time I see him for the next three years I'll not hold any grudges! haha

I was surprised how much the AA cost ... £250, seems expensive for 20 minutes work.


Fujixs90 - I'll do just that, i've called my local Indie and I'm only 2 months away from a service due anyway so I'll have it serviced and injectors cleaned.
Post #374909 28th Nov 2014 7:10pm
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Clive



Member Since: 21 Mar 2014
Location: Littleborough
Posts: 467

United Kingdom 2004 Defender 90 Td5 X-Tech LE Zambezi Silver
Might be worth adding ½ a litre of 2 stroke oil to the tank too, it helps to improve the pump lubrication and is generally good for the fuel system.
Post #374911 28th Nov 2014 7:10pm
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X4SKP



Member Since: 29 Nov 2013
Location: Berkshire
Posts: 2295

United Kingdom 2010 Defender 90 Puma 2.4 SW Stornoway Grey
Pierce.M wrote:
Many thanks for the quick replies!

I was surprised how much the AA cost ... £250, seems expensive for 20 minutes work.


... what exactly was done by the AA... Question

Hope you do get away with this...and it's a lucky escape Whistle SKIP
https://www.defender2.net/forum/topic83242.html
Post #374916 28th Nov 2014 7:37pm
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shaggydog



Member Since: 12 Aug 2012
Location: Kent
Posts: 3347

United Kingdom 1991 Defender 110 200 Tdi USW Arles Blue
I still don't understand how you can look at a defender and think "yes, this needs petrol" Rolling Eyes

Modern diesel engines do have a tolerance for petrol in the diesel which will be in your handbook.

However a full tank of it may be too much.

Problem is the petrol will cause seals to soften and can cause issues further down the line.

Change your fuel filter, brim the tank with diesel.

Just keep topping it up with diesel for now, try and dilute what is left in the lines it as much as possible by constantly topping it up.

Then after about 2 tankfuls change your filter again, add some forte' injector cleaner and then fingers crossed you should be ok. Running Restoration Thread http://www.defender2.net/forum/post323197.html#323197

Self confessed mileage hunter Very Happy
Post #374917 28th Nov 2014 7:37pm
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MadTom



Member Since: 10 Sep 2013
Location: Olomouc
Posts: 623

Czech Republic 1999 Defender 130 Td5 HCPU Baltic Blue
TDCi engine runnig on diesel+petrol mix? If you are very lucky, it will survive. But probably not.
1. high pressure diesel pump - makes more than 1800bar into rail
2. injectors

If you are lucky, only the pumpy is destroied and now small metal particles from pump are flowing through the injectors. This is tipical problem of TDCi engines with bad diesel - aprox. in 150 000km. You can save expensive injectors repair, if you are fast and place your car to a specialist - they will check the diesel filter and if there are some metal particles inside they will now, what to do. Replace the high pressure pump, pipes and rail - it is not possible to clean them. And check injectors on a tester or clean them - if you are lucky.

But, it the engine was running and than stopped it self, i think, it is a big problem. Common rail diesel is very sensitive for fuel quality. Much more than older engines, because it works with 10 times higher pressures, "Drobek" = The Small One - Discovery 2, "Blufínek" = The Blue Thing - Defender 130, and for me at least Ford Mondeo Smile
Post #374958 28th Nov 2014 9:39pm
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munch90



Member Since: 26 Oct 2013
Location: guildford
Posts: 3558

England 
Ive done hundreds of mis fuels over the years petrol in diesel , diesel in petrol on all makes and models old and new , and its not as bad as some make it out to be

if you stopped fairly soon , then I think your be ok , might be worth putting a fuel lube additive to be on safe side and keep it topped up with diesel
Post #374959 28th Nov 2014 9:54pm
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Cuthbert



Member Since: 26 Oct 2013
Location: Up North
Posts: 1535

Thanks to Munch90 for offering words of positive support based on real life experience.

Others queue up like the Prophets of Doom led by Cassandra .........
Post #374990 28th Nov 2014 11:20pm
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custom90



Member Since: 21 Jan 2010
Location: South West, England.
Posts: 20413

United Kingdom 
I'd recommend some additive too, it should give it a clean in the process .
I'm using Millers right now and it goes well.
Post #374993 28th Nov 2014 11:38pm
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MadTom



Member Since: 10 Sep 2013
Location: Olomouc
Posts: 623

Czech Republic 1999 Defender 130 Td5 HCPU Baltic Blue
TDCi engine in Puma is from Ford, with some minor modiffications. I have towed 2 friends car (Mondeo and Transit) to a specialist. Both not new, but both with petrol in diesel. Mondeo owner was lucky - didn't started the engine on petrol, and it was only cleaning of fuel tank and fuel lines with some additives. No problem.
Transit owner made 10km run with aprox 90% of petrol in fuel. Ha was partly happy - "only" cleaning, new fuel filter and new high pressure pump and high pressure pipes. The pump was partly seized and small metal particles was comming out of the pump - into high pressure rail and pipes and into injectors. Seizing of high pressure pump is big problem with common rail engines. It will destroy slowly the pump and also the expensive injectors.
Injectors were good enough, to be just testes and ultrasound cleaned.
TD5 or older diesels in LR can wistand much worse fuel, but not TDCi. For very old diesel engines, there was recomendation to add petrol in fuel in winter. But not with common rail diesel.

And because of very bad previous experience with LR or Ford dealers here in Czech republic (they know nearly nothig about common rail and how to repair it properly), we only use a specialist for common rail. It is cheaper and they really know, what they are doing. The need for purity is very high. "Drobek" = The Small One - Discovery 2, "Blufínek" = The Blue Thing - Defender 130, and for me at least Ford Mondeo Smile
Post #374998 29th Nov 2014 6:18am
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Dave-H



Member Since: 08 Feb 2011
Location: Surrey
Posts: 1507

England 2007 Defender 90 Puma 2.4 HT Tonga Green
Like Munch, having spent numerous years as a commercial vehicle mechanic I've had my fair share of mis fuelling incidents.
Unfortunately, modern day diesels with common rail system and high pressure pump, rely on the right fuel [Heavy Oil] as a lubricant for the fuel system as well as the fuel to run.
Petrol is a solvent, not an oil, and as such it flushes the lubricating properties of the diesel away. The doom mongers speak a lot of sense actually, You may be lucky and suffer no ill effects ..... Or you may have caused premature catastrophic wear to pump etc that will come back and 'bite you on the ass' at any time. Rolling Eyes

Fingers crossed for you Thumbs Up Guns and Landrovers .... anything else is irrelevant.
Post #375052 29th Nov 2014 3:53pm
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