>It so happens that gasoline is very volatile.

You know, I have always suspected that was true <g>

>Most people would prefer the pump breakdown sooner than a sudden vapor lock on
>a hot day.

Well, I am not sure that would be the consensus, as one stops you from going,
the other stops you from going, and also costs you hundreds of dollars, but I
didn't bring it up to be argumentative. It just makes little sense to have two
filters in the same line, and as long as you are using a filter, it is logical
to put it ahead of the pump and protect it, as well as the rest of the FI
system.

Judging from what I have read today, Some vans came with a filter in front, some
with the filter downstream, and some with both. I respect the VW designers, but
it appears that they could simply not make up their minds with regards to what
is best, so I guess we are left to our own opinions and logic.

If one has a second filter, it ought to really last a lifetime if there is the
smaller one upstream.

Thanks,

John