I tried, but 99% of the time its the cheap ones that you wouldn’t fill in if they paid you. I like to stick to the big names, even if it costs a little extra... The additives they use pay off over time.

 

My general preference has been toward Shell or 76 though I've mainly used ARCO the last 18 years. Fuel economy has been generally good but I do notice the car will eek out a couple tenths more with Shell in the tank.

I replaced the basic platinum Bosch plugs (Another mark against me along with ARCO gas) and the plugs came out clean with a faint tan hue around the tip. Using a bore scope, the piston tops were clean also. So while Arco get's the punches, it's working fine in this 1UZ. Of course, YMMV.

 

Oh ,i think you misunderstood me.
I don't buy gas from any gas station . It has to be a Sunoco selling ultra 94 octane.
Also do not buy from any Sunoco gas station without pay at the pump systems, mainly because it would be old tanks and a dirty/rusty system.
I use the site to find out before i leave my house or head home the trends in my local area for my favorite stations that are cheapest.

I live in a major city so i pass 5 gas stations every mile atleast . this just helps me choose which one i am going to before i leave.
The best part i like is that i never have to worry about buying gas at an ok price then going 2 blocks and finding it cheaper . I hated that and never have to worry about it again.