Biodiesel Burps… Wrong Mix

For indispensable reporting on the coronavirus crisis, the election, and more, subscribe to the Mother Jones Daily newsletter.


Soybus.jpg What if the biodiesel you’re buying doesn’t have as much biodiesel as advertised? Or a whole lot more? Well, according to a new analysis of more than 20 distributors and small U.S. retailers, blends sold as 20% biodiesel contained as little as 10% or as much as 74% biodiesel. The study by Christopher Reddy at the Woods Hole Oceanographic Institution and colleagues is published in Environmental Science & Technology.

The problems are manifold (pun, sadly, intended): from a shaken public confidence to tax credits given in excess of what sellers deserve. Plus, blends containing more than 20% biodiesel can damage hoses and gaskets in cars manufactured before 1993, and can also freeze in cold temperatures. This could plug fuel filters or freeze fuel solid in the tank. The blending problem is most apparent with smaller mom-and-pop retailers mixing it themselves. From ES&T:

The biodiesel industry is trying to rein in the problem, says Amber Pearson, a spokesperson for the National Biodiesel Board, by working with ASTM on standards that will include biodiesel blends. States will then have to adjust their own regulations to include blend verification.

Growing pains, let’s hope.

Julia Whitty is Mother Jones’ environmental correspondent, lecturer, and 2008 winner of the John Burroughs Medal Award. You can read from her new book, The Fragile Edge, and other writings, here.

SIX TRUTHS

Reclaiming power from those who abuse it often starts with telling the truth. And in "This Is How Authoritarians Get Defeated," MoJo's Monika Bauerlein unpacks six truths to remember during the homestretch of an election where democracy, truth, and decency are on the line.

Truth #1: The chaos is the point.

Truth #2: Team Reality is bigger than it seems.

Truth #3: Facebook owns this.

Truth #4: When we go to work, we're in the fight.

Truth #5: It's about minority rule.

Truth #6: The only thing that can save us is…us.

Please take a moment to see how all these truths add up, because what happens in the weeks and months ahead will reverberate for at least a generation and we better be prepared.

And if you think journalism like Mother Jones'—that calls it like it is, that will never acquiesce to power, that looks where others don't—can help guide us through this historic, high-stakes moment, and you're able to right now, please help us reach our $350,000 goal by October 31 with a donation today. It's all hands on deck for democracy.

payment methods

SIX TRUTHS

Reclaiming power from those who abuse it often starts with telling the truth. And in "This Is How Authoritarians Get Defeated," MoJo's Monika Bauerlein unpacks six truths to remember during the homestretch of an election where democracy, truth, and decency are on the line.

Truth #1: The chaos is the point.

Truth #2: Team Reality is bigger than it seems.

Truth #3: Facebook owns this.

Truth #4: When we go to work, we're in the fight.

Truth #5: It's about minority rule.

Truth #6: The only thing that can save us is…us.

Please take a moment to see how all these truths add up, because what happens in the weeks and months ahead will reverberate for at least a generation and we better be prepared.

And if you think journalism like Mother Jones'—that calls it like it is, that will never acquiesce to power, that looks where others don't—can help guide us through this historic, high-stakes moment, and you're able to right now, please help us reach our $350,000 goal by October 31 with a donation today. It's all hands on deck for democracy.

payment methods

We Recommend

Latest

Sign up for our free newsletter

Subscribe to the Mother Jones Daily to have our top stories delivered directly to your inbox.

Get our award-winning magazine

Save big on a full year of investigations, ideas, and insights.

Subscribe

Support our journalism

Help Mother Jones' reporters dig deep with a tax-deductible donation.

Donate