It's mandated to appear in the markets by October 2006. Sulfur as I know it lubes the injectors, injector pump, and other injection parts. I remember when fuel was 34 cents a gallon and I looked for the darkest fuel to run in my rig. With the advent of low sulfur fuels...additives are common place for lubebrosity and many as well as me mix a few ounces of two stroke engine oil in on a fill up or add a quality additive in the Winter. Today's diesel fuel really smells weird and when I replace a fuel filter instead of messing with filling the filter with diesel fuel, I fill it with ATF for a easy purge upon replacement of the filter. QUESTION: Does anyone know how the new fuel will effect current diesel engines in these area's. 1. Lubrosity 2. Cetane levels 3. Long injections system life. I understand that over the road rigs and farm equiptment will be exempt. Any other issues this new fuel could cause?