Which Octane?

bostonbands · December 2nd, 2006, 07:50 PM

might be a dumb question but I can't (easily) find an answer on google. Which gas grade to use?

I had a 93 Gt and recall when using low grade gas I could feel the power loss and hear the gas "popping" so I just started using 93

is 91 just as good? I have the diablo tuner on it's way and have seen "tune for 91, tune for 93" but don't see details. more power with the 93 tune?

I don't usually care about gas prices but also don't want to waste on 93 if 91 is going to be the same for my GT

thanks all!

HMUSN · December 2nd, 2006, 07:53 PM

91 will be fine.
shit i ran 87 in my old stang and it ran fine.
just don't use the 93 tune.

bostonbands · December 2nd, 2006, 07:55 PM

thanks. so if I did use the 93 tune, I'd need to use 93 octane always...but i'd get more power?

HMUSN · December 2nd, 2006, 07:56 PM

not really.

the higher octane just burns cleaner.

T.M.-808- · December 2nd, 2006, 10:05 PM

The 05+ stangs are tuned for 89 octane.It's not like the GM OBD-2 PCM that adjusts the timing per grade octane your using.
When folks put a cold (i like to say fresh) air intake,they usually require a tune from a handheld tuner,this will also download a 93 octane tune,this really wakes up the car.

December 2nd, 2006, 07:50 PM	#1
bostonbands Regular Join Date: Nov 2006 Posts: 69 iTrader: 0 reviews	Which Octane? might be a dumb question but I can't (easily) find an answer on google. Which gas grade to use? I had a 93 Gt and recall when using low grade gas I could feel the power loss and hear the gas "popping" so I just started using 93 is 91 just as good? I have the diablo tuner on it's way and have seen "tune for 91, tune for 93" but don't see details. more power with the 93 tune? I don't usually care about gas prices but also don't want to waste on 93 if 91 is going to be the same for my GT thanks all! __________________ 2010 Kona Blue/silver GT500 Convertable

December 2nd, 2006, 07:53 PM	#2
HMUSN Doc 1986 SVO 48.47@ 12.58 Join Date: Nov 2006 Posts: 37,050 iTrader: 11 reviews	91 will be fine. shit i ran 87 in my old stang and it ran fine. just don't use the 93 tune. __________________

December 2nd, 2006, 07:55 PM	#3
bostonbands Regular Join Date: Nov 2006 Posts: 69 iTrader: 0 reviews	thanks. so if I did use the 93 tune, I'd need to use 93 octane always...but i'd get more power? __________________ 2010 Kona Blue/silver GT500 Convertable

December 2nd, 2006, 07:56 PM	#4
HMUSN Doc 1986 SVO 48.47@ 12.58 Join Date: Nov 2006 Posts: 37,050 iTrader: 11 reviews	not really. the higher octane just burns cleaner. __________________

December 2nd, 2006, 10:05 PM	#5
T.M.-808- Regular Join Date: Aug 2006 Location: HAWAII Posts: 143 iTrader: 0 reviews	The 05+ stangs are tuned for 89 octane.It's not like the GM OBD-2 PCM that adjusts the timing per grade octane your using. When folks put a cold (i like to say fresh) air intake,they usually require a tune from a handheld tuner,this will also download a 93 octane tune,this really wakes up the car. __________________ ..........05 GT... 2 1/2" DROP..........

Remove Advertisements Sponsored Links
Ford Mustang Forum Advertisement

Threads Similar to: Which Octane?
Thread	Thread Starter	Forum	Replies	Last Post
Octane	Fastback91	Classic Mustangs	18	November 25th, 2007 07:48 PM
91 or 93 octane	Draztic1	2005 - 2010	8	September 23rd, 2007 12:20 AM
93 octane?	petrol_head	5.0 Mustangs	9	July 16th, 2007 08:12 PM
Gas octane	ByPopularDemand	V6 Mustangs	11	May 6th, 2007 08:30 PM
What octane should I run	f8yd2blk	The Clubhouse	9	May 11th, 2006 08:36 AM

All times are GMT -4. The time now is 03:02 PM.
Contact Us - Modded Mustangs : Ford Mustang Forums - Privacy Statement - Top
Modded Mustangs is ©2005-2008, All Rights Reserved, And is Not Affiliated with Ford Motor Company. Forum is powered by vBulletin ©2000 - 2012, Jelsoft Ent. Ltd. & SEO by vBSEO 3.3.2 ©2009, Crawlability, Inc.