I installed a 95 GPH grey model back in august; and it ran great up until it got cold. I live in central Minnesota so temps hover between 0-10 degrees for the majority of time during winter. You can't buy anything but #1 from like October to March and I always run either Howe's fuel conditioner or power service. In the 3 years I've had the truck; it almost never gelled. Right up until I put the FASS in. It gels about every week; and each time I put new filters on, it will run at 16-17 psi for a few days, then spikes to 25-30 while driving. I'm wondering if any of you northern boys are having any of the same issues running these pumps. I looked into the electric heater option but it sounds like it only heats when the key is on, not necessarily ideal for my situation. I know they've got a way to cycle coolant through the pump; but I'm hoping that's last resort because it would be a . Any help or tips would be appreciated!