"Just filled up and got 15.416 gallons into the tank, without even trying to
squeeze every last drop in.  Now either the tanks aren't 15 gallons big, or
the gas station's meters are off...
Joachim"

according to the "vanagon specifications" (for 1981) the fuel tank holds
15.9 (US) gallons (60 liters)

Karl
'81 Westy "Jenny"
Wilmington, DE
http://homepage.mac.com/karlploessl/album.html