Octane Rating?
07-28-2014, 08:14 PM
Road Captain
Thread Starter
Join Date: Feb 2014
Location: MN. USA
Posts: 744
Octane Rating?
I Have 98 FLHRCI what octane do you guys try to run?
07-28-2014, 08:57 PM
Join Date: Sep 2010
Location: Indiana
Posts: 10,219
Quote:
Originally Posted by
uplandpinter
I Have 98 FLHRCI what octane do you guys try to run?
Premium only in my 97FLSTC.....
07-28-2014, 09:58 PM
Join Date: Nov 2012
Location: Omaha
Posts: 6,513
The local BP stations have ethanol-free, 91 octane. That's what I've been putting in my FXR.
07-28-2014, 10:53 PM
Join Date: May 2006
Location: Ohio
Posts: 6,591
07-29-2014, 05:25 AM
Join Date: Apr 2007
Location: Senoia, Ga., by way of Miami, Fl..
Posts: 1,952
premium 93, unless I use ethanol free, then its 91.. Honestly, you should be fine with anything that doesn't ping.. The rating is just that, a burn rate which helps to control the tendency to knock.. I simply do it because, I'd rather lean to the safe side for hot days and neither of my bikes are stock.. I don't care about the cost since its double the mileage of my truck anyhow.. Depending on the bike, you may also notice better mileage on a particular octane too..
07-29-2014, 05:28 AM
Join Date: Mar 2014
Location: Hamilton Ontario
Posts: 590
Highest grade @ Gas Bar Always
07-29-2014, 07:53 AM
Join Date: Oct 2011
Location: Round Rock, TX
Posts: 1,376
Standard compression bike will run fine on regular.
07-29-2014, 09:06 AM
Join Date: Jul 2013
Location: Houston, TX
Posts: 2,874
I run 87 or 89... no need to run premium with stock CR.
07-29-2014, 03:34 PM
Join Date: Mar 2014
Location: Hamilton Ontario
Posts: 590
My Manual calls for Premium for 2007
07-29-2014, 04:32 PM
Join Date: Jul 2013
Location: Houston, TX
Posts: 2,874
Quote:
Originally Posted by
mayhemmaster
My Manual calls for Premium for 2007
And your 96 inch twinkie is fuel injected and is running on a higher CR than a stock evoglide.
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