Fuel octane?

idesigner · February 27th, 2010, 10:22 AM

Unfortunately I live in Phoenix and our Octane levels are usually only at 91 and I cant seem to find anything higher. When I got the vehicle a couple weeks ago the seller had filled it up with a higher octane.

After putting 91 in it I can tell a difference in performance (slightly lower level), if only slight. The car is supposed to have a minimum of 92. Will running it at 91 cause any problems long term?

vita · February 27th, 2010, 10:38 AM

Ive been told no. If you really are worried about it, you can use a octane booster that actually works.

idesigner · February 27th, 2010, 11:44 AM

I use it everyday so I'm not sure how cost effective that would be?

97mustanggt · March 1st, 2010, 11:08 AM

here in my area where i live i only c 91 octane as well, thats all ive used on tha cobra

ReverendDexter · March 1st, 2010, 11:14 AM

I ran my Cobra on 91-octane cali pisswater gas 99% of the time with no issues. Car definitely ran better those times when I could get out to the racetrack and put a half-tank of 96 in it, though.

Trick Tuners · March 1st, 2010, 11:48 AM

If you are not knocking, then you are fine.

February 27th, 2010, 10:22 AM	#1
idesigner Newbie Join Date: Feb 2010 Posts: 48 iTrader: 0 reviews	Fuel octane? Unfortunately I live in Phoenix and our Octane levels are usually only at 91 and I cant seem to find anything higher. When I got the vehicle a couple weeks ago the seller had filled it up with a higher octane. After putting 91 in it I can tell a difference in performance (slightly lower level), if only slight. The car is supposed to have a minimum of 92. Will running it at 91 cause any problems long term?

March 1st, 2010, 11:08 AM	#4
97mustanggt Hardcore Enthusiast 97GT & 97Snake & 00L T.B.A Join Date: Aug 2008 Location: Richgrove, Ca Posts: 2,183 iTrader: 0 reviews	here in my area where i live i only c 91 octane as well, thats all ive used on tha cobra __________________ 97 Cobra & 00 Lightning Beauty & The Beast I rev next to hybrids so they can hear me kill the environment MM Cobra Club Member #77 MM Lightning Club Founder

March 1st, 2010, 11:14 AM	#5
ReverendDexter Priest of the Car Gods Clapped-out '90 GT 'vert ~5.5 seconds off TTOD :( Join Date: Jan 2007 Location: Rohnert Park, CA Posts: 13,808 iTrader: 0 reviews	I ran my Cobra on 91-octane cali pisswater gas 99% of the time with no issues. Car definitely ran better those times when I could get out to the racetrack and put a half-tank of 96 in it, though. __________________ O o /¯/______________________ \|BLAAAAAAAAAAAAAAAAAAAAAAAAARGH!!! \_\

March 1st, 2010, 11:48 AM	#6
Trick Tuners MM Fanatic KB'd GT Join Date: Nov 2006 Location: San Diego Posts: 4,467 iTrader: 3 reviews	If you are not knocking, then you are fine. __________________ Check out my forums for stuff on troubleshooting, tuning, etc We teamed up with Socal Performance Racing to bring dyno tuning to San Diego. Be friends with us on FB

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February 27th, 2010, 11:44 AM	#3
idesigner Newbie Join Date: Feb 2010 Posts: 48 iTrader: 0 reviews	I use it everyday so I'm not sure how cost effective that would be?

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