<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Originally posted by dengraham:
The Ultra Low Sulfer Diesel will only be 15 ppm compared to the existing 500 ppm. My understanding is that all the engines will be able to run on the Ultra Low Sulfer Diesel Fuel. </div></BLOCKQUOTE>Correct. But from what I've read ULSD has somewhat of a solvent quality to it just like biodiesel. If you were to switch to mostly ULSD on the next tank-full then depending on the hours on your engine and other factors you could end up clogging your filters and injectors. When the time comes (i.e. once ULSD is available most everywhere) what I'm going to do is to switch over gradually.
Start filling no more than 20% of your tank with ULSD and the rest LSD. Run your tank down to at least 3/4 empty and then do 30% ULSD mix. Keep incrementing ULSD by 10% per tank until you get to 70% ULSD. Next tank you can go all ULSD and then stick with it from there on with it pretty much from there on. A tank-full of LSD once in a while won't hurt but once converted you should try avoid it just to be safe.
I know, what a pain in the ***
but better safe than sorry.