Re: Running on fumes

[Colin Hames <cchames@mm.com>]

I believe Audi's fuel recommendations are RON ( Research ) octane rating use
in Europe.  US posted octane rating is an averaging formula for its posted
octane.  I can't remember ( any help listers ) the name of US octane rating
but for example 95 + 87 / 2 = 91.  91 should be the required US octane.  My VW
and Audi list similar fuel requirements.

As far as fuel capacity,  carry a small can of gas with you and see how far
you get.   That is what I did to get an idea of the range in my Audi.

Colin Hames
'98 Passat 1.8t
'86 5CSQW

Lawrence Bardfeld wrote:

> Quick two questions (and apologies if I've missed the answers in
> previous postings):
> 1.      Audi owners' manual (I didn't have Bentley handy driving in today)
> says there are 3.2 gallons of fuel remaining when the gas gauge first
> hits the red "empty" zone.  (The car is a 93 S4).  But how much gas is
> left when the low gas warning light first appears?  (I know, I know,
> one should refuel well in advance of the red zone, much less the
> warning stage, so please no lecturing.)
> 2.      95 octane is recommended.  Not commonly [at all?] available in at
> least my part of the US (northeast).  Best one can readily do is buy
> super costly 94 octane Sunoco - all the other popular brands don't go
> beyond 93 octane.  Is the extra cost for 94 really worth it?  (Again,
> the vehicle in question is a 93 S4 - with chip)
>
> Larry
> LB6116@pitcairn.com