I’m late to starting my own oil changes on my 22’ Tacoma (0w20). Now that warranty is up I’ll be doing them myself and am baffled by the price (Canada) of single quart or liter bottles of name brand oil. The big 5L jugs are always on a good sale (30-40$ cad) but it’s around 17$ in change for a single qt of Casterol Edge, PP, Valvoline or QSUD. Super tech is 8.88, I see good things about it on here. Some would say just use Supertech all around I’m sure but is it wrong to add an affordable single qt of a different oil with the large jug of something else?