I want to start a new saying...
If it's under nine, regular is fine...
It may not be precisely accurate,.. but, "premium" "high test", "super".. is just regular gas, with an anti-knock additive...
It don't make power,... and it does nothing good, if your compression doesn't per-detonate the fuel...
....(it's a flame retardant additive)...
...
It's not magic...
We, have a low compression engine... it does not make enough pressure to cause per-detonation...
You are replacing fuel, with an anti-knock agent...
Only fuel burns...
Do the math...
...
Also,... in this day of high fuel prices,... Few people buy "premium" fuels... so they sit in the station tanks longer...
That can't be good... old gas, is bad gas..
Regular is fine,... if you're under nine...
...(It might be ten)...
...