With the federal mandate for more and more biodiesel the stations that don't have it are few. I bet if you tested the ones that claim to not have any it would show up as having biodiesel as they don't have a choice of what the wholesalers are shipping.
You might like this but I doubt it. (what your government is doing to you with out you having a say)
The U.S. Environmental Protection Agency announced final volume requirements under the Renewable Fuel Standard program today for the years 2014, 2015 and 2016, and final volume requirements for biomass-based diesel for 2014 to 2017. This rule finalizes higher volumes of renewable fuel than the levels EPA proposed in June, boosting renewable production and providing support for robust, achievable growth of the biofuels industry.
The final 2016 standard for cellulosic biofuel — the fuel with the lowest carbon emissions — is nearly 200 million gallons, or 7 times more, than the market produced in 2014. The final 2016 standard for advanced biofuel is nearly 1 billion gallons, or 35 percent, higher than the actual 2014 volumes; the total renewable standard requires growth from 2014 to 2016 of more than 1.8 billion gallons of biofuel, which is 11 percent higher than 2014 actual volumes. Biodiesel standards grow steadily over the next several years, increasing every year to reach 2 billion gallons by 2017.
The RFS, established by Congress, requires EPA to set annual volume requirements for four categories of biofuels. The final rule considered more than 670,000 public comments, and relied on the latest, most accurate data available. EPA finalized 2014 and 2015 standards at levels that reflect the actual amount of domestic biofuel used in those years, and standards for 2016 (and 2017 for biodiesel) that represent significant growth over historical levels.
This is from Biofuels Digest.
http://www.biofuelsdigest.com/bdigest/2016/01/03/biofuels-mandates-around-the-world-2016/
Bill
