Interesting to see…I ran this all of last winter in my G5. I can attest to it having very good cold-start properties, start ups were fast down to -25 to -30C.
However, I was disappointed by it - there was more tc/valve train noise with it, and when I drained it after 5 months/7.5k miles, there was a decent amount of dull aluminum glitter in the drain pan. Doesn’t seem like it protected very well.
I dunno, could just be my engine giving up, but it does seem to be quieter with 10W-30 conventional, so doing short changes with that for the summer.