Yep, home heating oil at least around here in eastern Canada has more sulphur now than LSD. Years ago home heating oil and Diesel came out of the same container. It does not so anymore. You also can smell that home heating oil has more sulphur content now as it stings in my nose and if you kinda feel the lubricity between two fingers its more like water as the lubrication has been removed (for all those bad folks that run home heating oil in their diesels ) I heard about mixing engine oil or ATF into the Diesel for lube. Engine oil isn't made to burn. It will coke. Tried that mix in my furnace. Never tried ATF as it is too much money for a liter. Only for the piece of mind adding lube to the ULSD (specially the winter blend) I got around and dump 1% of canola oil (salad oil) into the tank. I still use a diesel fuel conditioner on top of it, that nothing will freeze.