I took delivery of a 2022 Colorado ZR2 2.8L Duramax a week or so ago. This is my first diesel truck and I just did my first refuel. I live in Minnesota where it's gotten colder than -20 over the past day or two. Local gas stations run winter blend diesel that is supposed to be safe up to -30 or so. My truck stays in the garage so it's warmer than being parked outside but I've been reading that the kerosene added to winter blend diesel reduces lubricity and cetane. Should I be running Hot Shots or some other additive in addition to using winter blend fuel?