Thanks Garak ,I remember the older 5w-40 Delvac 1's having 4.1 and later 3.9cP HT/HS viscosities. Some competitors' PDS's list >3.9 cP viscosities too for Volvo VDS 4.5 certified 5w-40 oils so this 3.8cP is probably not correct - like the weird pour point of -30 Celsius on some PDS...
Just can't find it readily available near me, plenty on 5w40 on the shelves though. Coldest I've ever started the truck was (-19) unplugged, 5w40 Delvac 1 still did fine.
Originally Posted by A_Harman
Yes. Beastly indeed. Keeping this oil in mind for next winter, if it's not too expensive. The MRV is pretty outstanding considering the high HTHS.
I don't know what the cost is in the States, but if you visit Ontario, Imperial Oil should have some pretty good pricing; at least it was good last time I checked Imperial Oil. I do remember in one thread that Doug Hillary had stated he'd gladly have used the Delvac 1 0w-40 of the contemporary vintage had it been available where he was.