Date:         Sun, 25 Nov 2007 22:03:51 -0800
Reply-To:     Michael Elliott <camping.elliott@GMAIL.COM>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         Michael Elliott <camping.elliott@GMAIL.COM>
Subject:      Re: Calculate fuel consumption when idling?
Comments: To: joel walker <jwalker17@EARTHLINK.NET>
In-Reply-To:  <009d01c82feb$fc8eb4d0$eb5b9904@gpa207joel>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed

0.6 gph is well within the probable error of my cocktail napkin
calculations. The probable error being +/- all the numbers there are.

--
Mike "Rocket J Squirrel" Elliott
71 Type 2: the Wonderbus
84 Westfalia: Mellow Yellow ("The Electrical Banana")
74 Utility Trailer. Ladybug Trailer, Inc., San Juan Capistrano
KG6RCR



On 11/25/2007 9:19 PM joel walker wrote:

>> I'm with Scott, measure out a quart and run it 'till it's gone and
>> watch the
>> clock.  It would be interesting to compare the calculted with the
>> real
>> world.
>
> ... or ... you could do what i did:
> install a trip computer that measures the amount of fuel used by
> counting the clicks of one of the fuel injectors. after calibration,
> it was very accurate ... at least to 1/10th of a gallon.
>
> and yes,i tested it at various rpm settings on the highway, and
> measured the fuel consumption by time. and yes, i also measured the
> fuel consumption at idle sitting in my driveway. :)
>
> for a 1986 vanagon gl, 4-speed, with about 40,000 miles on it at the
> time,
> it measured ...
>
> <drum roll>
>
> 0.6 gallons per hour.
>
> and i'd say that was accurate (based on my experience with the trip
> computer) to +/-0.1 gallon.
>
> unca joel