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Main Area => General GS500 Discussion => Topic started by: SIKDMAX on July 04, 2008, 02:57:43 PM

Poll
Question: What grade of gasoline do you run in your bike?
Option 1: 87
Option 2: 89
Option 3: 91/92
Title: What Grade of Fuel Do You Run In Your GS?
Post by: SIKDMAX on July 04, 2008, 02:57:43 PM
Ive always read  the debates about this and was wondering specifically on the GSs what grade of fuel you guys run, and if you notice MPG/performance changes depending on such. 
Title: Re: What Grade of Fuel Do You Run In Your GS?
Post by: ben2go on July 04, 2008, 03:08:17 PM
You didn't include 93.I run 93 because our shitty station dumps left over  E85 in the 87 and dumps 87 in the 89.Plus I seem to pick up water from those tanks.None of my vehicles will run on the stations 87 or 89,so I run the 93.I have always had problems running Shell gas in any thing I have.Even my mowers won't run it.This is the only close station to me.That's why I frequently stop there.Lately I've been shopping around in the areas I travel.
Title: Re: What Grade of Fuel Do You Run In Your GS?
Post by: SIKDMAX on July 04, 2008, 04:22:38 PM
Didnt include 93 cuz its not availible in Cali lol. 

Mainly just trying to figure out if people run the cheapie 87 or the most expensive "premium"

The midgrade is a straight mix of the higher and lower. 
Title: Re: What Grade of Fuel Do You Run In Your GS?
Post by: SIKDMAX on July 04, 2008, 04:53:43 PM
21 views and 3 votes?

WTF Vote!  :icon_lol:
Title: Re: What Grade of Fuel Do You Run In Your GS?
Post by: laserred97gt on July 04, 2008, 05:02:04 PM
I run 93 because I have a V&H ignition advancer, and because under the seat, on the emissions sticker, it says to run min 91RON.  Ibelieve this is a different formula we use at the US pumps (RON+MON/2 I believe) so I err on the side of higher octane.

I have only put 2 tanks of gas through her so far, so maybe I'll try out the 87 or 89 and see what happens.  More than likely....nothing.   :dunno_white:
Title: Re: What Grade of Fuel Do You Run In Your GS?
Post by: SIKDMAX on July 04, 2008, 05:08:35 PM
Im filling up almost every day (yes I ride alot :D ) and was thinking I could save a few bucks a day with 87.  Maybe Ill try it when Im just commuting and not going on a performance ride. 
Title: Re: What Grade of Fuel Do You Run In Your GS?
Post by: astroaru on July 04, 2008, 06:55:04 PM
I have been using 87 without any problems. It gets me 54 mpg(so no complaints). I did try the other ones with no noticeable effects and hence stuck with this.
Title: Re: What Grade of Fuel Do You Run In Your GS?
Post by: theUBS on July 04, 2008, 09:01:09 PM
I was under the understanding that the GS engine wasn't high enough compression to worry about upgrading to higher octane fuel.  I run 87 with no problems--getting 60 MPG if I'm conservative with the throttle, and not much less if I'm not.  :icon_mrgreen:
Title: Re: What Grade of Fuel Do You Run In Your GS?
Post by: yamahonkawazuki on July 04, 2008, 09:04:03 PM
right. the octane number is the gas' resistance to detonation ( a bad thing)
Title: Re: What Grade of Fuel Do You Run In Your GS?
Post by: starshooter10 on July 04, 2008, 11:07:58 PM
it's a low compresion engine..

and i read that alot of airclood engines dont take well to 91

as they heat up fast and then have to cool down fast...

it's supposed to warp it more then 87....

maybe if i got ping/knocks i would run higher...

for now i'll save my 25 cents per fill up (i fill up almost every day... )
Title: Re: What Grade of Fuel Do You Run In Your GS?
Post by: Jackstand Johnny on July 04, 2008, 11:26:29 PM
I run good ol' fashion cheap ass 87 octane at the low low price of $4.00 a gallon.
Title: Re: What Grade of Fuel Do You Run In Your GS?
Post by: starshooter10 on July 05, 2008, 12:20:56 AM
Quote from: SecondsFromTheFall on July 04, 2008, 11:26:29 PM
I run good ol' fashion cheap ass 87 octane at the low low price of $4.00 a gallon.

:flipoff:


i pay the LOW LOW prince of 4.60 anywhere i can find it...      :o

welcome to california  :dunno_white:
Title: Re: What Grade of Fuel Do You Run In Your GS?
Post by: GSRider on July 05, 2008, 04:05:30 AM
I run the lowest octane possible that won't give me knocks and pings.

89 octane for me. 87 runs like hell and knocks like crazy.