Welcome to Mustang Evolution.
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03-26-2006, 10:06 PM
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#1
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What octane to use
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Registered User
Join Date: Jul 2005
Posts: 11
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I have been putting shells' 93 octane but have felt it alot weeker i was putting 89 before and felt it alot quicker and it responded faster. Is it safe to use 93 on a stock v6. i was putting it because afriend a of mine told me if i put 93 over the 89 i was using i would be .2 seconds faster in the quarter mile. is this true |
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03-26-2006, 10:11 PM
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#2
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Re: What octane to use
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Teh TC6!
Join Date: Aug 2005
City: Sheppard AFB
State: Texas
Posts: 3,968
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Nope, on a stock car without a tune, higher octane gas does nothing. At least on our cars anyway.
Now, if you were to get it tuned to burn 93, it probably would shave some time from the quarter.
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03-26-2006, 10:13 PM
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#3
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Re: What octane to use
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Registered User
Join Date: Jul 2005
Posts: 11
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so then i should use 87 im just wasting money |
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03-26-2006, 10:25 PM
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#4
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Re: What octane to use
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No more obstacles
Join Date: Jul 2005
City: Marin County, Nor Cal
State: California
Posts: 893
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87 is all you need for a stock engine with no tune. Before I tuned my car I used 91 every once in a while just for the hell of it and it did seem to respond better at first. .2 seconds is a lot when referring to 1/4 mile times. Stock engine with no tune won't see a gain like that.
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99 Cobra: flowmasters, 18x9.5 cobra R's, soon to be tuned and geared. daily driver
99 V6:in avatar, Mac Cai, true duals/flowmaster 40's ,UDP, custom tuned, bullitt suspension 18" wheels...taken by mother nature 
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03-27-2006, 06:34 AM
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#5
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Re: What octane to use
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Deranged
Join Date: Jan 2005
City: Largo
State: Florida
Posts: 6,130
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Higher octane gas actually burns slower then lower octane fuels. Using this will cause the fuel that is not being burned to build up in your heads,valves,pistons,it's best to match the octane to your tune
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Mods-MAc CAI , True Dual Flowmaster 40,3.73 ,T-Lok, 25% UDP, 3/8 Phenolic Intake Spacer ,Steeda Tri-ax, SCT Chip/ Tune
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03-27-2006, 08:13 AM
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#6
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Re: What octane to use
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Taking life one day at a time
Join Date: May 2003
City: Simpsonville
State: South Carolina
Posts: 10,970
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I work for a big oil company and I say use 93 it is better and you will be lining my pockets with your money so I can send my kids to Harvard. MUHAHHAHHAHAHAHAHA.
No just kidding as stated above dont waste money on higher octane.
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03-27-2006, 08:44 AM
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#7
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Re: What octane to use
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WTF^^...
Join Date: May 2003
City: Hoover / Florence
State: Alabama
Posts: 27,117
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some older cars have detonation and need it, but I am pretty sure you only need 87. What type of car do you have?
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03-27-2006, 10:30 AM
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#8
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Re: What octane to use
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Registered User
Join Date: Jul 2005
Posts: 11
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i have a 2003 mustang v6 should i stick with 87 octane or 89 cause i dont want to use 93 because i really think its alot slower |
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03-27-2006, 10:34 AM
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#9
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Re: What octane to use
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Taking life one day at a time
Join Date: May 2003
City: Simpsonville
State: South Carolina
Posts: 10,970
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