Hey all I hope I can help out here I manage the fuel depatment of a supply house that distributes just over 4 million gallons a year. As of Dec und users must have in there tanks 500 ppm LSD in there tanks or a 32500/ day fine will be applied (just had a customer that is building the new school here tested- they passed as we puchas 15 ppm but market it as 500) The only thing that can run high sulfer (heating oil) is a stationary motor (genset) that hasent moved in the last 12 months, and not been built, remanufactured or modified since May 1 2006. This new ruling made my & my drivers job interesting... BTW in another year and a half they will phase out the high sulfer heating oil and there is a whole other set of rules about marine & locomotive that I really dont keep with & aircraft it seem like they dont care how much sulfer is in that as of when this was enacted there was no ruling on aircraft... Lastly as for addative YES !!!! I use Howes.
Sean