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I hear you Frans - The pump on my Cummins is a huge inline bosch unit - no problems. And yes, the tolerances on the VP44 rotary are what causes problems. However, Elsbett actually do a single tank conversion for these - and twin tanks do fine.

VP44's are fine with veggie if they are pre heated with dino diesel, and purged of veggie before shutdown. Its all a matter of tolerances. The Cummins C9 in my log truck will start from cold in freezing weather with semi solid veggie in the lines..:)

Your talking about the Bosch VP44 rotary pump. Very few european VW's have that pump.... WOnder why the difference? My buddy runs http://www.vegetableoildiesel.co.uk/forum/index.php and http://www.vegetableoildiesel.co.uk/index.html, he has had no problems with twin tanked pre heated VW tdi...

Not quite a truck Butch, but I'm sure it wiould take your saw, saddle, and spurs. Comes with a diesel engine too...

Your problem Nate, you've been to Europe and seen the light. :) My wife has a little Renault MPV. Stylish, very practical, 4x4, and has a startlingly quick little turbo diesel engine that gives her about 47mpg...

Frans, TDI vw's are excellent on straight veggie oil - provided you have a twin tank conversion. PD (pumduesse) versions are slightly more sensitive, but all are factory warrentied to run on biodiesel

Nonsense. sulfer refining indeed :roll: Low sulfer diesel should be cheaper... Diesel was once a dirty byproduct of the petroleum industry, that they struggled to find a market for. it was only when lightweight versions of Rudolph Diesel's engine became available that they found a market...