Has anyone tried the FPPF 8+ brand. Guy at work has a old timer diesel mechanic that swears by it. Anyway, I did a bit of research on the product and was impressed by the numbers over basic two-stroke additive.

Fuel Additive Test - Ultra-Low Sulfur Diesel - Diesel Power Magazine

Bottom of the article gives the results on the testing. I have not checked it out locally for availability or cost though.

 

I've never heard of it Jim but it sounds interesting.