Date: Thu, 7 Apr 2011 10:45:57 -0700
Reply-To: Scott Daniel - Turbovans <scottdaniel@TURBOVANS.COM>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: Scott Daniel - Turbovans <scottdaniel@TURBOVANS.COM>
Subject: Re: Report: gas mileage, in town, 1.9L AT
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re
you may very
> well be running quite rich due to the poor van never really warming up."
here's a trick regarding that ..
for during the winter.
Fire up the engine as gently as you can ...
and start driving within a minute or so ..
turn the heater temp control lever mostly off.
Like don't have the heater circuit flowing full flow until you've gone a
little while..
maybe 5 minutes.
this give the t-stat a chance to get the engine up temp a little better .
since, if the heater is on full ....then it cools the engine too much at
first..
and you may never get into fully warmed up state ..
and closed loop operation.
If it's cold, and it's downhill..
that's even more challenging of a situation. .
Ideally a car runs under a nice medium load cold...
to get it warmed up sooner.
all operation below fully warmed up state in a waterboxer van ( or any
car ) wastes fuel and is pretty rough on the engine.
In some situations...
short cold trips..and lots of them ..
as much as something like 80 % of the van's total driving time can be in the
not-warmed-up state...
which is sure not easy on the equipment.
----- Original Message -----
From: "Karl Wolz" <wolzphoto@Q.COM>
To: <vanagon@GERRY.VANAGON.COM>
Sent: Tuesday, April 05, 2011 3:33 PM
Subject: Re: Report: gas mileage, in town, 1.9L AT
> If all the city driving you're reporting is in and around Bend, you may
> very
> well be running quite rich due to the poor van never really warming up.
>
>
>
> Karl Wolz
>
>
>
> _____
>
> From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of
> Rocket J Squirrel
> Sent: Tuesday, April 05, 2011 2:17 PM
> To: vanagon@GERRY.VANAGON.COM
> Subject: Re: Report: gas mileage, in town, 1.9L AT
>
>
>
> On Tue, 2011-04-05 at 13:48 -0700, Robert Fisher wrote:
>
>> All I can get is E10. I'd be willing to go with the idea that your low
>> number may be due to environmental factors beyond your control, but I'd
>> still look for mechanical/electrical culprits (misadjusted brakes, etc.)
>
>
> Well, jeepers -- if someone wants to volunteer to come to Bend to dig
> more deeply into this, I'm down with that, because everything I'm
> capable of checking has been checked, and I've had the eyes of two
> mechanics on this thing in the past 6 months, both men who know
> Vanagons. There may be something that's been overlooked, but I have no
> idea how to find it.
>
>
>> IIRC there was a thread within the last couple of years that compiled a
>> pretty exhaustive list of those things.
>
>
> I was struggling with lousy mileage first half of 2008 and chewing up a
> lot of list bandwidth while troubleshooting. Checked into every darn
> thing that everyone suggested. So that might have been me. Turned out to
> be the ECU.
>
> Now my highway mileage is fine, even towing my little camping trailer.
> That's 90% of what I use this van for. Takes me a month to go through a
> tank of gas in non-camping season. So this isn't a major deal.
> --
> Rocky J Squirrel
>
> _____
>
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