>
>I have the same problem in my '85 Westy.  Investigation revealed that someone
>in the dim past used the gas tank supports as floor lift resting points.  The
>supports are bent upward and the gas tank is bent upward as well.  I suspect
>the capacity is reduced somewhat, but the most serious problem is that
>unsuspecting drivers run out of gas prematurely because the tank is empty when
>the guage needle hits the red area on the guage.  May check to see if the tank
>is intact.

My 84 has always been off.  Shows 3/4 when full.  Solution is to drive on
the trip odometer.  I can go 300 miles on a full tank so always fill up
after 250 or sooner if its a long way between stations.

Earl from Sunny Sooke
84 ex-California Vanagon