OP: to make a decision on additive, important to identify just what fuel problems you are trying to prevent. to me, there are 4 main reasons for using an additive:
1) moisture removal 2) injector lubricity 3) anti gelling in cold 4) algae,etc. growth in the diesel.
in addition, would be helpful to identify your location to make a decision on above. i have not run across a product that includes all 4 preventative measures. usually the biocide is stand alone, but i could be wrong
also if you'll be using a storage tank or just 5 gal containers. so important as well to ensure your supplier is high volume to avoid above mentioned potential issues
best regards