B20 or B100?

December 29th, 2009

I have a source of biodiesel near where I live that will supply any mix, from B100 to B20. I have been using B20 and wonder if there is any reason I could not run B100 in my 2001 Cummins?

Dear Editor,

I have a source of biodiesel near where I live that will supply any mix, from B100 to B20. I have been using B20 and wonder if there is any reason I could not run B100 in my 2001 Cummins?

Jeff
Martinez, CA

With B20 now available at many pumps–and more every day–we get inquiries like yours more often. We have heard of very few problems-most of our readers seem to be enthusiastic about the opportunity to use renewable fuel. However, there are some characteristics of B100 that make it a little different from B20. For one thing, pure biodiesel has a solvent effect on all the gum and petroleum crud that may have accumulated in your fuel tank or fuel system. Therefore, you should check your filters until the old buildup is eliminated.

Some say that B100 has a shorter shelf life than regular fuels. Six months is the longest most petroleum companies recommend storing regular #2 diesel; with B100, the ideal length of time could be somewhat less. There are, however, a number of commercial fuel stabilizer additives that would extend that length of time. -ed

 

Advertisement

Leave a Comment

You must be logged in to post a comment.