I use Howe's every tank-including summer. This AM, truck would start but die after 15 to 30 seconds. Temps the last couple nights have been -15, around +5 during the day. The truck has been sitting about 5 days without being run, thogh i did have it plugged in. Could this have been the main reason? Could the Howe's have "settled out"? Any way, I dumped a double dose of Power Service that I had lying around in the tank, started the truck and let it idle (this was after letting the sun shine down for a couple hours-temp was 0) for about 5 minutes. Seems to be OK now. So now I'm thinking of going with stanadyne, or amalgamated. Amalgamated seems complicated to order-is there a formula they have pre-mixed, or do you have to get a custom blend? What is the cost compared to Stanadyne? I remember a thread on this from a year or so ago, but 45 minutes of searching and i couldn't find. 
