Dad owned/operated an ESSO/Exxon station from '55-'79. All we ever used were SuperFlo and UniFlo oils and, put a TIGER in our tank.
When Dad retired in '79, I personaly became a Havoline fan based on it's everyday low price(& rebates too) and stayed that way into the mid 2000's. I still buy Havoline now & again when the price is good but, it'll never be as cheap as it one was.
After Dad's retirement, I had purchaced just about any oil on sale but, it was Havoline that was on sale/rebate most often.
I currently have a stash of Havoline 5W20 for the Mazda3(16qts remaining) but, have a host of other brands as well(syn & dino).