Oh...yes, your car will tell the difference, but if you were to mix it with diet coke over some ice, you couldnt tell the difference.I can tell if someone put 91 in my tank cuz i only use 93. So technically if 91 aint close to 93 much less it will be close to 94.
If I had access to 92 or 93, I would run it.
If I had access to 94, I may run that as well.
The 101 at $9 is a waste on my Q, but my G gets it.