Dodgy fuel

Any Audi owners caught out - and if so how well did the limp home mode work?

"Mick x" > wrote in message
...
> Any Audi owners caught out - and if so how well did the limp
> home mode work?

Personally not been affected by the dodgy (allegedly, your Honour
:-) ) fuel, but limp mode on Audis works the same on all cars -
usually restricting engine revs to half the maximum, and
generally running like a bag of $h!t. Whatever caused the limp
mode, the stored fault codes from the ECU will need clearing, and
provided the original cause of the limp mode trigger has been
eliminated, all will be fine again.

Have you been affected, Mick, or know anyone who has?

Rgds, Sean

Thankfully not to date Sean (fingers crossed)

I have an A6 and wondered how the big beast would behave in that scenario.

Shell V-power - so not in the zone thankfully.

Mick


On 3/3/07 08:43, in article ,
"LeakiestWink" > wrote:

> "Mick x" > wrote in message
> ...
>> Any Audi owners caught out - and if so how well did the limp
>> home mode work?
>
> Personally not been affected by the dodgy (allegedly, your Honour
> :-) ) fuel, but limp mode on Audis works the same on all cars -
> usually restricting engine revs to half the maximum, and
> generally running like a bag of $h!t. Whatever caused the limp
> mode, the stored fault codes from the ECU will need clearing, and
> provided the original cause of the limp mode trigger has been
> eliminated, all will be fine again.
>
> Have you been affected, Mick, or know anyone who has?
>
> Rgds, Sean
>
>

In article >,
Mick x > wrote:

> Any Audi owners caught out - and if so how well did the limp home mode work?

Dunno about others, but my new A3 3.2 can get by on 87 Octane. I've
tried it and it runs well enough. It doesn't hurt the gas milage or
performance for conservative driving but the engine wimps out when you
stomp down the throttle.

On Mar 3, 10:13 pm, Kevin McMurtrie > wrote:
> In article >,
> Mick x > wrote:
>
> > Any Audi owners caught out - and if so how well did the limp home mode work?
>
> Dunno about others, but my new A3 3.2 can get by on 87 Octane. I've
> tried it and it runs well enough. It doesn't hurt the gas milage or
> performance for conservative driving but the engine wimps out when you
> stomp down the throttle.


My wife put a tankful of regular in my car last year. Same deal,
didn't run terribly but I could definitely tell when I tried to spool
up the turbo. I do put mid-grade (89) in occasionally and the
performance and mileage are the same as with 91+.

Dan D
'04 A4 1.8Tq MT-6
Central NJ USA

Kevin McMurtrie > wrote:

> In article >,
> Mick x > wrote:
>
> > Any Audi owners caught out - and if so how well did the limp home mode work?
>
> Dunno about others, but my new A3 3.2 can get by on 87 Octane. I've
> tried it and it runs well enough. It doesn't hurt the gas milage or
> performance for conservative driving but the engine wimps out when you
> stomp down the throttle.

It isn't about octane, but contaminated fuel...

<http://news.bbc.co.uk/1/hi/uk/6409025.stm>

Over in the UK btw we only have the choice of 95 or 97 octane fuel,
nothing as weak as 87.
--
Jon B
Above email address IS valid.
<http://www.bramley-computers.co.uk/> Apple Laptop Repairs.

Jon B wrote:
> Kevin McMurtrie > wrote:
>
>
>>In article >,
>> Mick x > wrote:
>>
>>
>>>Any Audi owners caught out - and if so how well did the limp home mode work?
>>
>>Dunno about others, but my new A3 3.2 can get by on 87 Octane. I've
>>tried it and it runs well enough. It doesn't hurt the gas milage or
>>performance for conservative driving but the engine wimps out when you
>>stomp down the throttle.
>
>
> It isn't about octane, but contaminated fuel...
>
> <http://news.bbc.co.uk/1/hi/uk/6409025.stm>
>
> Over in the UK btw we only have the choice of 95 or 97 octane fuel,
> nothing as weak as 87.

http://en.wikipedia.org/wiki/Octane_rating

In most countries (including all of Europe and Australia) the "headline"
octane that would be shown on the pump is the RON, but in the United
States and some other countries the headline number is the average of
the RON and the MON, sometimes called the Anti-Knock Index (AKI), Road
Octane Number (RdON), Pump Octane Number (PON), or (R+M)/2. Because of
the 8 to 10 point difference noted above, this means that the octane in
the United States will be about 4 to 5 points lower than the same fuel
elsewhe 87 octane fuel, the "regular" gasoline in the US and Canada,
would be 91-92 in Europe. However most European pumps deliver 95 (RON)
as "regular", equivalent to 90-91 US (R+M)/2.

In high altitude areas of the USA you can purchase 85 AKI fuel which most
normally aspirated cars happily digest with no problems. My 5000CS gets
87 most of the time and is glad to get it...

In article > ,
(Jon B) wrote:

> Kevin McMurtrie > wrote:
>
> > In article >,
> > Mick x > wrote:
> >
> > > Any Audi owners caught out - and if so how well did the limp home mode
> > > work?
> >
> > Dunno about others, but my new A3 3.2 can get by on 87 Octane. I've
> > tried it and it runs well enough. It doesn't hurt the gas milage or
> > performance for conservative driving but the engine wimps out when you
> > stomp down the throttle.
>
> It isn't about octane, but contaminated fuel...
>
> <http://news.bbc.co.uk/1/hi/uk/6409025.stm>
>
> Over in the UK btw we only have the choice of 95 or 97 octane fuel,
> nothing as weak as 87.

Interesting. I wonder if the article meant to say "silicone" rather
than "silicon". Silicon is an element resembling a rock. It won't get
past the fuel filter in any quantities that would damage an O2 sensor.
Silicone, on the other hand, can be an oil that's soluble in gasoline.
It is very heat resistant but it will still burn into a powdery mix of
silicone dioxide and silicon carbide. Even small amounts of silicone in
the fuel could wear down engine parts or glaze over an oxygen sensor.