octane 91 per manual?
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Tourer
Joined: Sep 2007
Posts: 313
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octane 91 per manual?
for my '12 SB, manual says to fill using Octane 91 but I see some folks using higher ctane and I presume this must be when you have Stage 1 like mods? Do you fill tank 1/4 and test out gas to ensure pinging or anything does not happen? And until you find the right octane you fill the tank up. I fear I cannot hear the pinging much so this is why I am asking do I go straight with Octane 91? Also I normally get my truck gas at 7-11...would getting at Sunco be the best to go with a Harley? I cannot think that Sunco and 7-11 have different gas between their Octane rating but hell 7-11 is not a refinery LOL. Thanks for the inputs...
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Joined: Jun 2011
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the higher the better in my opinion with in reason.. mine pings on 93 octane
regarding fuel vendors the only difference for the most part is the additive packege to the base fuel stock..
that said.. there is definetely a difference.. i prefer chevron.. its proven itself to me in an aircooled VW motor.
if you EVER use an octane booster make sure there is NO lead in it.. if they even offer it w/ lead anymore
regarding fuel vendors the only difference for the most part is the additive packege to the base fuel stock..
that said.. there is definetely a difference.. i prefer chevron.. its proven itself to me in an aircooled VW motor.
if you EVER use an octane booster make sure there is NO lead in it.. if they even offer it w/ lead anymore
Road Warrior
Joined: Aug 2009
Posts: 1,630
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From: Central FL
I do fill up with the lower octane every once in a while and as soon as I do, I can hear pinging. The computer compensates for is and it's just very light. I also don't get on it hard when it does. I fill up almost daily so sometimes its a mix in there. 91 is almost impossible to find around here, usually it's 93.
Devil's Advocate
Joined: Jun 2010
Posts: 2,070
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From: Alberta, Canada
I always have run the higher octane. Bike seems to run better.
Also, I try to fill up at Shell or Chevron. Bike seems to like their additives better.
It is your bike, only you will know if it runs great or like crap. I tried using a blended premium that made her sputter and cough, never again.
Also, I try to fill up at Shell or Chevron. Bike seems to like their additives better.
It is your bike, only you will know if it runs great or like crap. I tried using a blended premium that made her sputter and cough, never again.
Road Captain
Joined: Mar 2012
Posts: 637
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From: Iowa
My choices around here are 91 or 100. I run 91. I'm thinking about mixing them though and see if I can tell a difference.
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From: Connecticut
I have and '06 Low Rider with Stage 1, and my brother has an '06 Road King with Stage 2.
We both use 91 Octane from random brands with great results, i.e. no pinging.
If we're somewhere needing gas and only 87 or 89 is available, we'll fill up and not notice the difference in performance.
One of our riding buds has an '05 Ultra Classic with Stage 2. He uses the highest grade Sunoco pretty much exclusively with great results, i.e. no pinging. He "feels" that his bike runs better so that what he does.
Try 91 octane see how it goes. If no pinging you have your answer.
Sammi
We both use 91 Octane from random brands with great results, i.e. no pinging.
If we're somewhere needing gas and only 87 or 89 is available, we'll fill up and not notice the difference in performance.
One of our riding buds has an '05 Ultra Classic with Stage 2. He uses the highest grade Sunoco pretty much exclusively with great results, i.e. no pinging. He "feels" that his bike runs better so that what he does.
Try 91 octane see how it goes. If no pinging you have your answer.
Sammi
Last edited by Sammi; Jun 18, 2012 at 03:44 PM.
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Joined: Mar 2012
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From: Boca Raton, Florida
93 w/Ethanol vs 90 w/out?
My local station has 93 octane premium whuch contains up to 10% Ethanol. They also have 90 octane with no Ethanol added (it's near the ocean and people fill there boats up there). Which is better for my bike?