unleaded in tdi????

G

gavin

Member
Surely somebody else must of done it
brand new a2oc member and tdi90 owner....after working 6 nights on a run stupidly put £5 v power petrol in my tdi (10%??), then filled with diesel and drove for a while with only prob being took couple of turns to start up later, since then seems ok. After period of sheer panic and internet doom mongering I paid 150 squid for tank to be pumped by mobile guy. Diagnostic by local indy audi guy later showed intermittent fault cyl1 & cyl 3 17055 17077 although think this prob here before petrol event.

Anyone know if its worth to get wynns engine purge (do it at awesome, or does mike at skipton do?) and if so before or after fuel filter change, or/and any fuel additive recomended (not petrol though eh). Will be getting fuel filter changed at service(hopefully by skipton autos) in next month. Most advice given seems to be dont worry, all will be ok.

Great site people.
 
£5 is what under a gallon and then ya filled it up with diesel?

I would just burn it off,top it up every gallon so your diluting it off.

Its gonna scour all the crap out of your tank though so I would change the fuel filter sooner rather than later.
 
unleaded in tdi

Prob did bout 15 motorway miles before got tank drained and pumping took pretty much full tank fuel out. Think will prob get "wynns engine purge" or at least seek out advice re this. Tell you what though my stomach didnt half turn over!!
Funky little car though and good size inside for over 6 footer. Wouldnt mind I've never done this before and had diesel for last 5 years (disco)!!! It was combination of not sleeping and those v power pumps that did it. Oh well **** happens eh.
 
A friend did similar in a pd Passat tdi a couple of years ago; tank drain, fuel filter change and no problems, still going well now :)
 
I did almost same thing about 35,000 miles ago, put about 4 litres of BP Ultiomate petrol in, then filled up with about 20 litres of diesel and simply kept filling up with diesel every 100 miles or so and absolutely no problems. after all at one time in winter diesel drivers would add petrol to stop waxing. I think there are lots of opportunist garages who are milking ££££ this wrong fuel problem.
 
Just to echo the above, you should be fine, especially now you've had your tank purged, but with the PD engine in the A2, it can cope with a relatively small amount of petrol by accident. But as Ulp mentions, the more modern common rail diesels certainly can't.

I did spot in Halfords the other day at the checkout a "save yourself an expensive mistake" device which seemed to claim to be some sort of alarm to indicate if you're putting the wrong fuel in. No idea how or if it worked and I certainly didn't buy it!
 
I did this once but realised it with the pump in my hand after having filled the car half way. Never started it and Audi Assistance towed it from Kent to London (after a 3 hour wait in a fuel station).

£320 later it was all well. But never made that mistake again. Hope yours is fine.
 
Did the same thing at, yes, a BP garage (black hose) and put a few quid in. towed home by AA and after taking out the seats and fuel tank cover (quarter turn circular thingy) drained with a fish tank filter tube. Tried to run the mower on the offspring but it just wasn't having it. Smelled more Diesel than unleaded.
 
Never turned the engine over and drained it the day after. Put a gallon of diesel in before I turned the engine over.
 
unless ive got the wrong end of the proverbial stick, ive always been under the assumtion that petrol in a diesel engine isnt a grave problem,especially if in low concentrations. In fact with less modern engines many high milage drivers and taxi drivers in particular that i know swear by petrol as a decoking agent by adding a small amount to full tanks of fuel every 5-10k!! on the other hand the opposite can be quite problematic,I.E diesel in a petrol engine.
 
When i worked at Jaguar, we probably encountered 2-3 mis-fuelled vehicles a month, and an expensive exercise it was too - pump, filter, fuel lines, injectors all had to be replaced and tank flushed too.

This is a device that i saw demonstrated on Dragons Den and seems to be the one of the "less obtrusive" to use.

http://www.misfuellingprevention.co.uk/index.asp

Could be £30 well spent.

As a matter of interest, at Jaguar we would advise ownwers to claim from their insurance and in most instances the policies would cover the repair bill - after they raped us on the labour charge of course.

Blue Skies

Tony
 
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