08-08-2017, 10:02 AM
(08-08-2017, 12:40 AM)The ferret_imp Wrote: Yea I saw that, and like you said, no big deal, the bike compensated just fine. I had never seen 85 Octane before that I recall.
That's pretty typical for high altitude areas. Due to the thinner air, the engine can't make as much power and is therefore less prone to detonation. I've run my bike just fine on 85 at high elevations.
The only problem is when you fill up with 85 octane at high altitude, then ride to a low altitude. I once filled up in Heber, AZ (elev. 6,600) with 85 octane, then rode to Phoenix (elev. 1,100). I had a definite knocking on acceleration when I got to Phoenix. Also didn't help that it was about 110 degrees out (which exacerbates the problem).