First diesel was a VW Dasher--loved it. Second diesel was a 1996 3500 Cummins. Third diesel was a Canyon 2.8 Duramax (sorry!) Current is a 2020 Ram 1500 3.0. Cummins always needed anti-gel for below 20F/-6C. Just got this 2020. Does it need anti-gel for down to 0F? Thanks.