Good point! In fairness, the test compares 0W-30 Mobil 1 to 5W-30 SuperTech, and probably says more about 0W vs 5W than it does about Mobil 1 vs SuperTech. Unfortunately, I didn't see any 0W SuperTech oil at Walmart, and didn't find any online.In the linked test, Supertech synthetic is not much faster than 100-per-cent dino at –20 C, reckoned extreme in warmer climes. This "cold"-pour test is recent: 2019.
Speaking of 2019, It hit –40 in Winnipeg on January 30 — not the wind-chill temperature, the real thing. Other days were nearly as cold. If Supertech is that sluggish at –20 C, imagine it at –40. I'll stick with plain-vanilla Mobil 1, the fastest cold pours in older videos, which, if I remember correctly, used 5W30, pre-dating my new favourite, 0W30.
I suppose Supertech synthetic is the bees knees year-round for most of the world; here, not so much.
I'll likely stick to Mobil 1 0W-30 for winter, and will consider a 5W- or 10W-30 SuperTech for summer.
Thanks for the link on the all-time lows here. I remember various of those days. I sometimes take screen caps of the Environment Canada forecast for Winnipeg, and send them to friends in warmer climates (i.e. almost anywhere else).
I remember that -42 C day in February '96 especially well - I used to run to work, about 11 km one-way (and take the bus home), but during a few weeks of that prolonged cold snap I was taking a course quite a bit farther away, and had been driving there. Anyway, I wanted to run at least once, and it happened to be the -42 day. I left home at 05:30, and did the 20 km in about 1:50. I was well-bundled-up with several layers, and a neoprene facemask. Made custom spats for my ankles by cutting up some old socks. Caught a ride home though! My wife had made a cake with icing running shoes on top, and the temperature (-42) in icing.
When I moved back here in '78, I was still running Quaker State 10W-30, and was not used to plugging in. My '78 Impala suffered through many an unhappy cold start that winter.
Anyway, I went to CT earlier this evening and picked up four 4.73 l jugs of 0W-30 @ $28.99 each (50% off). Almost twice the price of the SuperTech, but not a lot of money in the great scheme of things. My accumulated CT "money" paid the whole shot.