Ive used a NAPA Gold on my truck, Mums Mechanic installed it, cut it open and it was good on the inside, well built. Looked like a Puro.
Goodyear gave me a free OC once, was a Carquest Red Filter, Reminded me of a WIX
I used Supertech my first OC I did myself, held up REALLY well, went 3500 miles on it and QSHM 10w-30
I have used some store brand oils in my life or know people who have, Dad used to use AAP Dino in his truck, still runs at 300k+ miles, GPA used to use Coastal, I have used PEAK which I dont mind, not really a store brand but in the same general monetary level, at work when people are leaking oil or burning off oil, Ill grab a bottle of Racetrac brand "Trac" oil and put it in there, we sell it for 3.99 a qt, its made by Warren. If there diesel is leaking or whatnot, I usually grab a bottle of Lubriguard, seems to work I guess.
If we are talking ALL oils, We also sell Istaca 2 Cycle Engine oil for a mere 1.99, aint bad, we use it in the leaf blower at work, I use it at home for the Chainsaw when I dont have Quicksilver 2 cycle on hand... Istaca is in a bigger bottle, and cheaper than the Gumout 2 cycle we sell, and I prefer Istaca over it....
For the chainsaw blade lube, I normally use the cheapest grimiest good for nothing motor oil I can find on the shelf, that is if the oil pan is empty, and I have no used oil to lube the chain, I have used Coastal ND 30, Peak, AAP, Shoot Ive even used that Bullseye motor oil thats like 0% all additives and detergents, lol, aint bad for basic blade grease.. Usually though its used motor oil or an almost empty bottle of oil laying around in the shed.