[s-cars] Gas milege on 95 s6

[Bruce Mendel]

With full RS2 setup (except for cams), 26 lb software, and Stromung exhaust
with cat:

1. Mild highway driving - 18mpg
2. Enthusiast highway driving - 16mpg
3. Enthusiast mixed city/highway - 13.5mpg
4. Track - 8-9mpg

Bruce
93 S4, new O2 and T-stat on the way


----- Original Message -----
From: "Mark Turczyn" <mturczyn at mindspring.com>
To: "Calvin & Diana Craig" <calvinlc at earthlink.net>; "Mark Strangways"
<strangconst at rogers.com>; "Elvis Palombizio"
<EPalombizio at ideal-products.net>; <s-car-list at audifans.com>
Sent: Saturday, February 01, 2003 8:15 AM
Subject: RE: [s-cars] Gas milege on 95 s6


> At 4:39 PM -0700 1/31/03, Calvin & Diana Craig wrote:
> >Mark,
> >
> >The car is a totally stock '92.  I have the stock all-season 15 x 7.5"
rims.
> >A couple of things to think about.  I always get the 25-27 mpg in the
half
> >of my trip to Minnesota that has Colorado and Western Nebraska in it.  I
> >can't get this mileage in Iowa and Minnesota at the same speed.  I
attribute
> >this to the lower wind resistance in the higher altitude.  At 6k feet,
the
> >air density is about 20% lower than at sea level.  Assuming a flat road,
the
> >only things that figure into mileage is engine efficiency, frictional
> >losses, and wind resistance.  By decreasing the wind resistance by about
> >10-15% at the average of about 4500 feet that the Western leg of the trip
is
> >at, it helps quite a bit on the mileage.  I do think I get pretty good
> >mileage compared to most other S-Cars I have seen, though, since I
average
> >about 22.5 mpg combined driving, i.e. average speed of about 38 mph on a
> >tank.
> >
> >--Calvin
> >
>
>
>
> Calvin-
>
> I experienced the same thing and mentioned it to the list about three
> or four years ago.  My Avant came with the 15"  rims.  When I drove
> it home to Maryland from Conn. I got about 27 mpg which really amazed
> me.  The down side was those tires almost killed me since the car
> handled (and horrible brakes) so bad.  I went into my first
> decreasing radius turn expecting this car to handle at least as good
> as my old Sub wagon and I nearly went off the road.  I know I got
> over 22 in my normal mixed city/highway driving.
>
> I quickly got a set of 17 inch rims so I do not have much more data
> except that it was much harder to see much over 21 in my normal
> commute.  It was hard to believe that wider tires could have this
> much affect even though we all know that during most of the high
> milage contests every car uses high pressure skinny tires.
>
>
> I then got an RS2 EM and turbo with very mild software and now I have
> to work very very  hard to see 19-20 for the last few years. Feather
> pedal and no fun.  If I get on it a bit about 18mpg.  I have many
> miles of data, a new T stat and O2 sensor so this a good baseline
> number.
>
> I suspect when I complete my full RS2 conversion with some of the
> magic software from the East Coast Crew I will be happy to see 17 mpg
> - perhaps less if I actually find that I have to play everyday.  This
> is only a guess.
>
> Of course mpg (politicaly very incorrect) is not the point of getting
> the full monty and hot software.
>
>
> What do lister's who have the full RS2 package and hot software get
> if they baby versus run their cars hard--anyone
>
> So all I can think of is stock setup with 15 inch rims and skinny
> tires is the best setup for gas.  I know this I5 motor is really
> amazing.  My wife had an 1980 90, and on trips we would get almost 30
> mph on the highway. The car also had 15" wheels.
>
> Mark Turczyn
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