Well, been a bit since I was on here. Time for an update?
First truth - Kum and Go Diesel fuel does not contain enough winterizing agents to protect against -22° here in Arkansas
Second truth - Hot shot's secret is NOT a winter additive (disclaimer, I didn't buy it for that reason, but also didn't think that anyone would sell a fuel additive without some sort of anti-gel properties) - My fault
With the newfound knowledge of 2 failed batteries (80K miles on factory 2020 units) and a -22° crosswind on the truck for over 12 hours causes severe headaches that I do not soon want to relive, I can report positively on the Hot Shot's secret additive.
I originally bought this to see if I could tame the constant regen issue I've been fighting for about 7K miles. I ran the first tank with a standard dosage of the stuff, and noticed the idle smoothed out a bit, and generally felt a bit livelier. Cetane boost more than likely. Still had regens every 80-120 miles.
Second tank, I treated with a bit more than a standard dose. It performed a regen 147 miles after the previous, then I refueled with additional additive. I am happy to report that the DPF gauge got to the second "step" before actually reversing to zero. I dropped the truck off this morning at the Dealer for my CP4 recall with over 450 miles and the DPF gauge on the second "step"
For the regen issue alone, I am a believer in this stuff. I also noticed a much better feel of the truck on incline with moderate throttle load. the surging is all but gone.
Now for the skeptics, myself included, there may be some caveats to the regen getting better.
@75K I replaced the CCV filter, and then shortly after I replaced the engine air filter as i saw a message briefly flash on my dash about "service air filter."
Not sure if either of those items played a role in the regen frequency decreasing, but it is a high possibility.
Haven't seen the turbo under boost code come back since changing the CCV either.
So, I'm going to keep using this stuff. It's relatively affordable, and seems to be doing more good than harm. So we'll see.