Read through this thread from the TDI club i think it should solve the glow plug heater polymerization problem.

http://forums.tdiclub.com/showthread.php?t=151177

__________________
Current:
05 E320 CDI
07 GL320 CDI
08 Sprinter
05 Dodge Cummins
01 Dodge Cummins

Previous
2004 E55 AMG
2002 C32 AMG (#2)
1995 E300
1978 300D
1987 300D
2002 C32 AMG(blown motor :[
1981 300SD
1983 300SD
1987 300SDL
2002 Jetta TDI
1996 S420
1995 S500
1993 190E 2.6
1992 190E 2.3
1985 190E 2.3 5-Speed

Well, I'm not sure about glow plug heaters, but I am glad to read that BioD cuts polymerized WVO - I'm running 2 micron filtered WVO in my GreaseCar setup and B20 in the main tank - on both the Benz and VW. Hopefully that will help cut down on internal polymerization.

I do know one thing for sure, though - the motor in the Benz definitely prefers WVO to B20. On WVO, it runs really nice and smooth with little/no smoke, great power and accelleration, and idles really smooth.

__________________
Autos:
1991 350SD 276,000 miles
2001 VW Beetle TDI 115,000 miles

Horns:
1955 Selmer Mark VI Alto (55,xxx)
1958 Selmer Mark VI Tenor (85,xxx)
1964 Selmer Mark VI Tenor (125,xxx)
1967 King Super-20 Tenor (430,xxx)
2002 Selmer Series III Soprano

For Jazz Saxophone enthusiasts - check out my website...
www.RustyBlevins.com

This smoothness can be had on straight diesel on the 603 too (and definitely b20). I've been there with the bosio nozzles and quality diesel fuel. Some of the clicks and clacks are back now, but that's due to other SNAFUs. That said, with time, frustration and a few more gray hairs the 603 can be silenced.

__________________
1982 300TD 210K miles ("The Replacement" aka "The Anvil") - SOLD
1979 300SD 245K miles (never ending project)
2007 Pinarello F3:13
1995 Ducati 916 (SOLD, sniff)
1999 Ducati 900SSie (SOLD)

That's what the "Iodine Value" in the ASTM index indicates: The lower the iodine value of the feedstock, the less likelihood of polymerization. The Europeans pay far more attention to this factor than the U.S.

Peace,