There are several possibilities. Some have already been addressed by others.

Have you checked for a fuel leak?? Could be anywhere from the fuel pump
on back most likely. I know that sounds to obvious but you never know.

Your optimum gas mileage on the Vanagon is going to be at 55 mph. It's
not bad at 60 but drops significantly above that.

Good luck.

John Rodgers
88 GL Driver

Ryan Dawson wrote:

>My recently acquired '84 Westy was getting about 275 miles per tank of gas (the
>needle was just dipping into the red section when I refilled).  Now on the same
>tank of gas, I'm already in the red section at 145 miles.  Any thoughts as to
>why my fuel mileage would drop so substantially?  Is it possible that the fuel
>guage is faulty?  I checked the tire pressure and its set at 38psi in front and
>44psi in the rear.  Also, the exhaust does not smell overly like unburnt fuel.
>
>Any thoughts are much appreciated!
>
>Ryan
>
>
>