What octane gas do you use? - Harley Davidson Forums



Sportster Models 883, 883 Custom, 1200 Custom, 883L, 1200L, 1200S, 1200 Roadster, XR1200, and the Nightster.
Sponsored by: DK Custom Products

View Poll Results: What Octane/Grade fuel do you fill up with?
Cheapest possible 12 7.32%
Mid-grade 9 5.49%
High octane/ premium 143 87.20%
Voters: 164. You may not vote on this poll

What octane gas do you use?

Reply
 
 
 
P
 
Thread Tools Search this Thread
  #1  
Old 05-22-2009, 04:40 PM
PHAT A$$'s Avatar
PHAT A$$ PHAT A$$ is offline
Senior Rider
Thread Starter
Join Date: Apr 2009
Posts: 416
Thanks: 0
Thanked 0 Times in 0 Posts
Cool What octane gas do you use?

Curious what type of petro everyone is running in their scooter?

I've been running premium in mine thus far, I admit I don't pay a whole lot of attention to the octane just get premuimn from Shell or Chevron if I have an option. Just a little chit-chat for a slow Fridya afternoon.

Jason
Reply With Quote
  #2  
Old 05-22-2009, 04:44 PM
cHarley's Avatar
cHarley cHarley is offline
Club Member
Join Date: Feb 2007
Location: Boynton Beach, FloriDuh
Posts: 15,706
Thanked 49 Times in 44 Posts
Default

What the Owners Manual calls for. For your (pre EFI) 883 it's 87 octane, for 1200's it's 91+. Running higher than required octane, does not equate to better performance.
Reply With Quote
  #3  
Old 05-22-2009, 04:46 PM
SgtMic's Avatar
SgtMic SgtMic is online now
Road Warrior
Join Date: Apr 2009
Location: WA State
Posts: 1,632
Thanked 3 Times in 3 Posts
Default

I run mid grade in my '08 1200c.
Reply With Quote
  #4  
Old 05-22-2009, 04:56 PM
PHAT A$$'s Avatar
PHAT A$$ PHAT A$$ is offline
Senior Rider
Thread Starter
Join Date: Apr 2009
Posts: 416
Thanks: 0
Thanked 0 Times in 0 Posts
Default

Quote:
Originally Posted by cHarley View Post
What the Owners Manual calls for. For your (pre EFI) 883 it's 87 octane, for 1200's it's 91+. Running higher than required octane, does not equate to better performance.
I need to pick up an owners manual... I have the Clymer and it probably tells me too, actually I just need to read it!

I didn't think much about preformance but, I was thinking that higher octane would burn/run cleaner... Is that just my vivid imagination?

Will running higher octane hurt anything accept my wallet?

Thanks cHarley, you are about 10x better (more knowlegeable) than anyone I've spoken to at any dealer/service place. have a nice weekend!

Regards,
Jason

Last edited by PHAT A$$; 05-22-2009 at 05:12 PM.
Reply With Quote
  #5  
Old 05-22-2009, 04:57 PM
jbg's Avatar
jbg jbg is offline
Road Warrior
Join Date: Sep 2008
Location: Irvine, Orange County, Ca
Posts: 1,618
Thanks: 0
Thanked 0 Times in 0 Posts
Default

Quote:
Originally Posted by cHarley View Post
What the Owners Manual calls for. For your (pre EFI) 883 it's 87 octane, for 1200's it's 91+. Running higher than required octane, does not equate to better performance.
On page 31 of my '08 owners manual (with EFI) it states 91 Octane. I always use 91 unless it's not available. And since it's only 2-3 gallons anyway, I'll spend the extra $.30 per fill up.
Reply With Quote
  #6  
Old 05-22-2009, 05:02 PM
Heath Heath is offline
Former Sponsor
Join Date: May 2008
Location: Mason City, Iowa
Posts: 303
Thanks: 0
Thanked 0 Times in 0 Posts
Default

I use the premium, not too bad when you're only getting a few gallon. This has always been debatable as to whether it's necessary. My understanding is higher compression motors casue the gas to ingite earlier than wanted and you end up with a knock. Higher octanes are harder to ignite so it delays the ignition just bit to eliminate this preignition.
That being said, I also understood the Harley motor to have lower compression ratios than the metric bikes. Do they also call for premium?
So is it necessary...good question?
Reply With Quote
  #7  
Old 05-22-2009, 05:21 PM
Bong's Avatar
Bong Bong is offline
One Of The Regulars
Join Date: May 2009
Location: SoCal
Posts: 129
Thanks: 0
Thanked 0 Times in 0 Posts
Default

Quote:
Originally Posted by jbg View Post
On page 31 of my '08 owners manual (with EFI) it states 91 Octane. I always use 91 unless it's not available. And since it's only 2-3 gallons anyway, I'll spend the extra $.30 per fill up.
+1 c'mon yall, being on a bike gives us one of the best mileage out there on any vehicle...spend that extra couple of bucks and keep your motor clean "Love thy Harley"
Reply With Quote
  #8  
Old 05-22-2009, 05:23 PM
Rockport Rockport is offline
One Of The Regulars
Join Date: Jan 2008
Location: Rockport, Texas
Posts: 178
Thanks: 0
Thanked 1 Time in 1 Post
Default

Assuming you ride 10,000 miles per year @ 40 miles per gallon, that means you will use about 250 gallons of gas. At a difference of 20 cents/gallon, you would pay about $50 more for gas over the course of a year.

Any repair related to using cheap/lower octane fuel would be a helluva lot more than fify bucks.

So, why cut corners on fuel. Get the best/recommended fuel for your bike and don't worry.
Reply With Quote
The Following User Says Thank You to Rockport For This Useful Post:
mrmarklin (07-08-2016)
  #9  
Old 05-22-2009, 06:00 PM
motordrum's Avatar
motordrum motordrum is offline
Road Warrior
Join Date: Jan 2008
Location: OKC
Posts: 1,351
Thanks: 0
Thanked 0 Times in 0 Posts
Default

There's actually a place up the street from me that has 101 octane! Too expensive for me though. I'll stick with premium.
Reply With Quote
  #10  
Old 05-22-2009, 06:30 PM
cHarley's Avatar
cHarley cHarley is offline
Club Member
Join Date: Feb 2007
Location: Boynton Beach, FloriDuh
Posts: 15,706
Thanked 49 Times in 44 Posts
Default

If running higher than required octane makes you feel better, then do it. After all, at 3-4 gallons for a fill-up, money's not much of an issue.

Name brand, premium octane fuels often contain a better additive package for keeping your fuel system clean vs regular octane grades. Of course you can do the same thing by adding a few ounces of Seafoam to a tank of gas each time you change your oil.

However, a motor that's designed and tuned (that means ignition timing) to run on 87 octane typically performs better and gets slightly higher mileage than the same motor running a higher than required octane.

It is also true that if you live in a colder climate you can often get away with running a lower than recommended octane fuel. But transport that bike and tank of fuel down south in the summer and the valve clatter (detonation) will likely make you think the motor's coming apart.

Last edited by cHarley; 05-22-2009 at 06:33 PM.
Reply With Quote
 
 
 
P
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Octane advice Likketysplit New "Rushmore" Models 46 06-02-2016 08:35 PM
Octane Rating? uplandpinter Evo Classic Models 9 07-29-2014 05:32 PM
Octane bonesmutley Shovelhead 5 06-05-2014 10:49 AM
octane question hellbob37 Softail Models 45 04-25-2011 12:09 AM
What octane gas do you run jimd Dyna Glide Models 54 08-11-2006 05:54 AM


Tags
1200, 2009, 883, 89, burn, davidson, fuel, gas, harley, high, kind, octane, premium, running, shovelhead, sportster

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Forum Jump


All times are GMT -5. The time now is 09:01 PM.