Is it from the mountains?

 

No... It's from a glacier in Alaska.

 

Even with PC III USB installed on my bike, I still use mid-grade...why should I be running high-octane if that's not recommended or required??

 

because high octane runs cleaner?

 

Can you explain how higher octane runs cleaner? As far as I know, it is the additives that do that job and octane numbers only matter for combustion, not running cleaner.

 

I live in Colorado, thinner air, so the unleaded 85 octane should be fine here right? Pumps out here are 85,87,89, I'm guying that's equal to 87,89,91 at sea level.

 

high octane doesnt burn cleaner or give you power, all it does is enable you to make more power by other means safely by preventing predetonation. whether it be nitrous, turbo, supercharger, advancing timing, upping compression...... etc. you get my point. some vehicles factory have high compression as is for the platform they run or are turboed/supercharged stock and thats why they recommend 93 for those vehicles. not the case for our bikes. if you dont have any extensive mods (or predetonation aka pinging) on your bike and you run 93 against the recommended 87 your a moron. plain and simple. im gonna go enjoy all the money im saving by running 87.

 

for the record.... not to offend anybody who prefers 93. just stating facts.

 

i was mostly talking out my *** so no offense taken on my part....though i have a jardine exhaust and power commander, so i run 93 but again ive just always run 93 in my corvette and rover so it just made sense lol

 

your vette is made to run on 93 and i bet the rover is too, ive only had a vette engine in camaro and it ran like crap on 87, i mean it was horrible.

you really wont save that much money on 87 but the bike will run better. mine did for sure.