[V8] Cold killing gas mileage

[pjager at telus.net]

A cold drivetrain:

Needs more fuel
Oil is more viscous
Drivetain fluids are more viscous


To boost economy consider:

Installation of engine warmer
Use a 5W 15 / 20 Oil
Get the tire pressure to max to reduce rolling resistance
Make sure the brakes aren't dragging and the pins are lubed up.
Shift to Neutral to coast when possible.
Remove unecessary items from the trunk.

The thermostat controls engine temperature, not the rad temp. My old 5000
the t-stat failed OPEN so the engine stayed too cool.

Paul Jager
www.jageng.com

PS I've got a Audi BOSE Cassette head unit with code and manual for sale
from my '93V8Q.
pjager at jageng.com





-----Original Message-----
From: v8-bounces at audifans.com [mailto:v8-bounces at audifans.com]On Behalf
Of dsaad at icehouse.net
Sent: January 3, 2005 8:18 AM
To: v8 at audifans.com
Subject: Re: [V8] Cold killing gas mileage


If the air temp is going to stay in the low twenties for a while, block off
most
of the radiator with cardboard or something. The reduction in mileage has a
lot
to do with the thermostat trying to keep the radiator at 90C.
This is exactly why you see radiator covers on all the diesel big rigs.
Just be sure to watch the temp guage closely.

Dave


Quoting Michael Larosa Jr <Mc.Larosa at Sun.COM>:

>
>
> Every winter I lost 2-3mpg as well,  I attributed to the reformulation of
> gas that tbey do in the winter here in NH.....
>
> Mike,
>
>
>
> QuickAudi at aol.com wrote:
> > Well, I'm kinda stumped.  At 60 degrees, I can get well into the low 20s
> for gas mileage, up to 23.  When it is 20 degrees, like lately, up to
about
> 45 or so, my gas mileage barely pushes 18-19.  What gives?  The air temp
> sensor "looks" ok, MAF is original, and OXS (3 wire) was replaced earlier
in
> the year.  Those were my three guesses.  Also have replaced G82/83 temp
> sensors and the one on the back of the passenger side cylinder head.
> > Oh yeah: MERRY CHRISTMAS!!!
> >
> > Joel
> > '90 V8q
> > '86 5kcstq
> > _______________________________________________
> > Audifans V8 mailing list
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> > http://www.audi-quattro.org/cgi-bin/twiki/view/Audi/V8
> > Have a V8 answer? ... Please help others by adding to the KB ... all
> contributions welcome!
>
>
> --
>
>      _/_/_/  _/    _/  _/     _/      Mike LaRosa
>     _/      _/    _/  _/_/   _/       TSE - HAS
>    _/_/_/  _/    _/  _/  _/ _/        1617 Southwood Drive
>       _/  _/    _/  _/   _/_/         Nashua, NH 03063
> _/_/_/   _/_/_/   _/     _/
>    S U N                              Phone: 781/442-1250
>    S E R V I C E S                    Fax: 781/442-5488
>                                       Email:mc.larosa at sun.com
> _______________________________________________
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> Have a V8 answer? ... Please help others by adding to the KB ... all
> contributions welcome!
>



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Have a V8 answer? ... Please help others by adding to the KB ... all
contributions welcome!