I'm new to Cummins and Dodge trucks but I've been around diesels for a while,... I'm a retired boat driver. I am thinking of getting 500 gals of bio diesel and storing it in a steel tank that will be in the shade in back of my shop. How well will it keep compared to dino diesel? Or is storing bio diesel a bad idea?

 

BD in an airtight, sealed, dark filled to the very top container will last a long time....providing you never open it.
Light will speed oxidation (plastic tank), it needs not be direct sunlight.
In my work with BD we found that after 15 weeks in a partially filled storage container that oxidation increased sharply and then showed a steady increase in the following months. Displacing the oxygen in the air filled portion of the container with nitrogen prevented oxidation.
This is the same thing that happens to any vegetable oil without preservatives once opened, it goes rancid.
A "rancid" BD may damage the engine and the fuel injection system since oxidation causes the fats in BD to turn to acids.

Your steel tank is the best way to store it, only thing better than in the shade would be underground.

If you want to store it longer use Baynox Biodiesel Stabilizer this will act as a preservative.
All Baynox really is is a synthetic vitamin E, an antioxidant.
http://www.basic.lanxess.com/bac/en/products/baynox/

 

Bill

Thanks for the info, thats just what I was looking for. Have a good day

 

TRy here for some answers as well: http://biodiesel.infopop.cc/groupee/...g+term+storage

But, Bill's answer does sum it up.