cp04
Dunder Mifflin Employee
.I use 87.
I don't think the computer on our bikes can adjust the timing to counter the effects of lower octane fuel.My motors seem to like the 91. I also get better mileage. And then again, isn't this sort of like an oil thread? Hahaha...
My tuner also recommended the higher. I don't think there's anything wrong using the lower octane because the CPU senses and adjusts accordingly.
The most the CPU can do is change the A/F ratio, as it does on the 07+ models which have O2 sensors.
With low rating gas on a high compression motor, the biggest problem you have is predetonation, or "pinging/knocking". To counter this you would have to change the timing.
Or i might just be talking out of my ass, correct me if I'm wrong! :iconbeer:
I have been filling it up with premium, as well as filling it up at Mohawk which sells 10% ethanol in their fuel. It's supposed to be cleaner burning.
2. You're wasting your money when you put in high octane fuel. The bike is not capable of taking advantage of it.
Fred
I don't think the computer on our bikes can adjust the timing to counter the effects of lower octane fuel.
The most the CPU can do is change the A/F ratio, as it does on the 07+ models which have O2 sensors.
With low rating gas on a high compression motor, the biggest problem you have is predetonation, or "pinging/knocking". To counter this you would have to change the timing.
Or i might just be talking out of my ass, correct me if I'm wrong! :iconbeer:
+1. Same goes for any other vehicle which is designed to run on 87. The higher the octane, the harder the air / gas mixture can be compressed without exploding. Detonation (knocking) = air+gas exploding before spark plug has a chance to fire. No motor designed to run on 87 should have this issue if it's working properly. Using higher octane provides zero benefit with this set up as the air+gas will not be compressed to the point where it can explode on its own before the spark plug fires.