Copy from another forum:
"When it comes to fuel additives the watch phrase is buyer beware. Because it's virtually impossible to quantify results, or potential to cause damage, the user must be cautious. Additive manufacturers that make lofty claims regarding lubrication, efficiency, fuel economy, smoke reduction, dilution rate etc should be carefully scrutinized before they are used. Stanadyne Is a trustworthy manufacturer, they make fuel injection systems, so you know they aren't going to sell you anything that's harmful and their claims are both modest and accurate.
Finally, I'm skeptical of any additive manufacturer that mentions algae mitigation in their advertising or literature. Algae, being a plant, needs sunlight to carry out photosynthesis. Every time I've stuck my head into a diesel tank I've been met with nothing but stygian darkness. Most biological contamination in diesel fuel is bacteria rather than algae-based.
I wrote a series of columns on fuel additives for PassageMaker last year. I'll post these in the Dreamers' documents folder.
Steve D'Antonio """"