I finally got a half gallon of this.
Stanadyne had 3 types; a lubricity, a performance and winter.
Almost bought another brand with a better price and tons of generally good reviews, when I spotted a reviewer from North Dakota who said that there were going to add some in their tank and it was froze solid in the original container. Say what!
We don't get ND weather down here but last winter had a bunch of it below -15°. Usually never gets below -5°. It had warmed up but my tractor in the barn had not warmed up and it wouldn't stay running, no way no how. So the snow turned back to ice and our sloped driveway was pretty much impassible even with the 4wd tractor once it got running, unless I drove it around crawling with the bucket rowing me.
We ended up not going off the farm for 2 months. The trick was that even if we got out we had miles of road just about like our driveway. and then we have to climb back into the driveway. We let the paid delivery people bring it to the gate and brought it up with a sled and spiked shoes. Fedex or ups were not on the road once for 2 weeks. My wife called their local offices to make sure that they were not going to send stuff back because of non delivery.