in 30+ years of doing my own oil changes most of the time, I have never been brand loyal. Use whatever cheapest but meet spec oil I can find. Most times I keep a 1-2 year stash on hand of whatever rebate oil I have picked up. If pushed to buy on the spot, most times it would just be the Wally World SuperTech brand oil they have. I do tend to stay away from low Moly oils like Valvoline but it is not a hard fast rule.