maybe i missed it but do you know the part number or where to get the clear fuel filter housing set up or is that a volvo thing? i think that would be sweet to be able to see things work.
That is a Davco 234 coolant heated fuel filter. It was specificaly designed for bio fuels. It also is available with optional 12v or 120 v electric heat. It also has a trash/water seperator in the bottom and an easy open drain valve. the company is here
http://www.davcotec.com/fp234.htm
The see through filter setup is pretty neat, you leave an air pocket on top and as the filter clogs , the level rises, when the fuel is near the top , the filter needs changing ( and yes, it realy works, I thought it still looked prety clean the first time it got up there , but sure enough, it didn't want to start the next day. Popped a new filter in and was good to go ) If you have room, they make a taller one 234 plus I believe that you can get a 2 micron filter element for.
I bought it from Frybrid, but the guy is a crook, lied to me over and over , took 2 months to get it to me ( After telling me he had them in stock ready to ship, then after numerous emails he finally gets it sent. he has them drop shipped, so he was obviously dining on my cash for 2 months )and I've still not recieved the filter wrench that he advertised coming with it, and later promised he'd send.
There is a reputable dealer on ebay selling the things.
----------Robert