I have been running the B20 and more recently B40 for the several month now and have not had to make any changes. I did not have any problems with fuel filter either. I only buy diesel from a reputable source.

Do a Google for Biodiesel, or Biowilly, or Autogas in you area. There has got to be some in California.

Have you got any BioWilly stations (The brand that was started by Willie Nelson the country singer) in your neck of the woods?

Thus far I have been quite impressed with the way the B20 and more recently B40 has improved the way my trucks run. The trucks run quieter, less smoke, burn hotter, and I don't need to spent money on additives anymore.

About the only thing I did was make sure I replaced all my fuel return line hoses and O-rings on the injector caps. I did not do that to run Bio, they needed to be replaced anyways due to age.


Seb....