yep, it's on the shelves right next to the "all season" stuff. I never had a use for the winter stuff, even in single degree temps with the good TSC. Sure it's molasses pouring it, but it thins out fine putting it into a warm saw. Last winter I had no issues in -5° with the Amsoil I have some of. It's tacky, not as tacky as the good TSC/Bel-Ray, but does not thicken near as much in cold temps.
I realized that when I got some on a rain check. It rang up higher...a lot higher and the cashier called the manager over and I got it for the sale price of either 7.99 or 8.99. It rang up a lot more IIRC
People actually use that super thin winter stuff? I guess I can see it in some homeowner saws that may have non-adjustable stingy oilers when being used in very cold temps, but with the good adjustable oilers found on the pro saws I don't see any need for an even thinner bar oil that is already being marketed as "all season". The only time it's thicker is when the saw is cold. As soon as the saw warms up, the bar oil thins out and whatever is added to it upon re-filling will very soon thin out as well. Again, though, it's not really about how thick the oil is, it's about the tack of the oil. If it was just about viscosity, I would just run some SAE 90 gear oil or add a bottle of STP Oil Treatment to some thin bar oil and call it good. LOL All bar & chain oils have some amount of tackifiers in it, that's what makes it bar and chain oil. Some have more, some have less. I want to see long stringers when refilling my bar oil, like I was seeing for 15 years up until recently. If it acts like you are pouring motor oil in, in terms of stringers, that's the stuff I don't want to use.
Winter grade has consistency at 20* that all season does at 70*. I started using it when I would have to squeeze the bottle of all season to get it into the saw. If it's that much trouble for me to pour out of a 1" hole, I imagine it becomes more difficult to flow through those tiny ports in the oil pumps. They do sell saws with heated handles too. Some folks just wear gloves.
This is true at ambient temp when first pouring it, making it easier to pour. I get that. However, when the saw is running for longer than 10 minutes it's no longer like that and thins right back out to what it would be in summer. I would agree if the fluid stayed in molasses-type form the whole time you are cutting, but it doesn't. This is why I don't like winter stuff, as it too thins out even more from the heat once the saw is running.