IMHO, the Amsoil still looks great. Of course, the HPL is also great, especially the non-CC version (Which is a bit odd the CC version isn’t just as great). The Motul is the “thinnest” great one, so could be the “go-to” for 75w-85 requirements.
I ended up NOT sending a sample to Suby, so can’t take credit...someone else deserves the credit.
FWIW,I just had work done on my 07 Subaru Outback XT trans/center dif, and refilled with Motul 300/Redline lightweight shockproof mix, approx 3-1 ratio…which is different from 50-50 prior ratio. Long long somewhat bitter story, and not 100% by design. but shifts great. Next up is Ford Transit rear diff, and thinking Amsoil SG, or maybe HPL non-CC. After unexpected high Subaru expense, might not be able to swing the Torsen rear upgrade, so cheaper may prevail over better for the time being...though ”better” fluid for Torsen still unresolved.
I have to call out that I don’t know how to compare the KRL results of the 2nd batch to the 1st. I assume the 2nd batch final column compares to the 1st batch final column, for Percent change after 20 hrs, but we don’t know the initial KRL as we do in the 1st batch, nor if % change of the 1st batch is the 20 hr figure. Or are they totally not comparable?
regardless, Suby went over and above on this, so kudo’s!!!!! Totally!!!