K1 is a near-perfect mixing stock for biodiesel. Bio provides all the lubricity you can use, and K1 is much better at cold temperatures. The only drawback is that K1 contains less energy, and you will see less fuel mileage.

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'83 240D with 617.952 and 2.88
'01 VW Beetle TDI
'05 Jeep Liberty CRD
'89 Toyota 4x4, needs 2L-T
'78 280Z with L28ET - 12.86@110
Oil Burner Kartel #35

http://i16.photobucket.com/albums/b1...oD/bioclip.jpg