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Hi Gary,
    My 86 has mileage  more in tune with yours, 12-  17. I feel it is in
nearly  as good of condition as a stock engine and van as my abilities are
capable making it.  I do  use about all the horse power the wasser boxer
will  provide on launch  and cruise at 70-75 mph.  My  wife  gets  21 mpg
highway  but she cruses at  60 mph.  My wasser boxer is balanced  and imho
is in near perfect tune. I  also warm it up before driving.
    Since  Mark put on a new air filter and a tune up, his wasser boxer may
be giving him a little  more  horse power by breathing a little deeper. If
he is using that extra power he will most probably use more  petro since
the oxygen  sensor will ensure a proper mixture with a dirty air filter or a
clean one.
    Being from Illinois and the land of MJ, a question for you being from
Utah.  Will the Mailman  deliver tonight?

Darrell Boehler
Makanda Illinois

>
>17.5, huh?  Wow.  I have an '81 Westy and get (I must admit I'm guessing
>here...) maybe 12 mpg in city driving.  About 18-20 on the highway
>since I did the rebuild, but city driving still drinks gas like
>crazy.
>
>-----------------------------------------------------------------
>Gary Shea                                       shea@xmission.com
>Salt Lake City                      http://www.xmission.com/~shea
>