Tom Young writes:

> You may not get any.  After all, how many people have opened up an old
> Vanagon tank and looked inside?  You might do as well, or better, by setting
> up some good lights and a mirror system and carefully looking over the tanks
> you have.  After you do that, Post!  I've never been sure exactly how these
> tanks seem to clog up over time.

Tom,

I have looked inside several Vanagon tanks, and it is easy to see why they
clog up over time.  The answer is RUST.

The tanks rust because of water in the fuel.  Here in Europe, it is legal
for fuel to include up to 1% water.  Given the presence of oxygen in the air
above the fuel, that is more than enough water for rusting to start.

Tony

'85 and '95 Vanagons