>Keith Adams wrote:
>That is a guy here in Calgary.  His van is dual fuel / propane powered.
He's >on
>the list and may chime in...?

>Jeffrey R wrote:

> Does anyone know what the yellow cap under the driver's side tail light
would
> be for on the Vanagon that is displaying this trailer hitch for sale on
> e-bay. Could it be a drain for a gray water tank or a filler for propane?
>
>
http://cgi.ebay.com/ebaymotors/aw-cgi/ebayISAPI.dll?ViewItem&item=577289758&
r=

------ reply -----------

That is me.  The yellow cap is a propane fill connection.  Van runs on
either propane or gasoline.
There is probably nobody interested in hearing me babble on about this, but
in case there is .......
Around here, the price of propane fluctuates more than gasoline, but on
average it costs between zero and 35% less per BTU than gasoline.  Currently
the cost per kilometer using propane with a syncro westy in Calgary, Alberta
is 17% less than gasoline.  Two years ago it was 45% less for a while.  2
months ago it was about the same because  propane was too expensive.
The advantages are that propane burns cleaner than digifant and with dual
fuel your driving range is extended about 300 kms.  You can also advance the
timing a ways because of the octane of propane's 110 octane. The MV engine
with 9:1 CR cannot take full advantage of the octane however. You also have
2 complete fuel systems available -------- in case something breaks.  The
digifant ECU still supplies spark however.
You can change between fuels while you are driving with a switch on the
dash, there are a few solenoid valves which turn things on/off.

Gary Lee