My local Ollie's has Wolf's Head 5w20 full synthetic for $2.99. I grabbed 8. I don't have any car that specs that weight but I can mix it with some 10w30 synthetic and that'll work for my cars.
You might be thinking of Kendall and Amalie being from the same company. Which they were, in the '70s and '80s, having formerly been independents.I believe it was made by the same company as Kendal way back. Presently , its additive package isn't that impressive to me.