Winter fuel summer fuel #2 #1 or a mix . I’m using a product called Total Power as my winter anti gel. I have in the past used many of the other brands available. So I have learned recently that the low sulfur fuel has a much lower pour point then number 2 something like 20 f for number 2 and zero for low sulfur now all you can get so if I’m understanding correctly I maybe can use less treatment or none at all maybe. But waxing fuel is not a good thing. Once it gels waxes it does come back adding treatment etc. ok I would like to hear what are your thoughts on this all thanks