octane rating

96gtponyred · August 21st, 2008, 10:13 PM

does a 94 cobra require a higher octane rating then the regular 87 ??

bullitt5576 · August 21st, 2008, 10:15 PM

94 im not sure of, 96 says premium only on the guages, you might go up due to shitty ethanol

built351w · August 21st, 2008, 11:10 PM

should say right in the manual and/or gauges. But I can pretty certainly say that you want to put premium 93 in it.......

93mustank · August 21st, 2008, 11:32 PM

No it does not

93hatch · August 22nd, 2008, 01:23 AM

Originally Posted by built351w

should say right in the manual and/or gauges. But I can pretty certainly say that you want to put premium 93 in it.......

why? to spend more money and lose power due to slower burning fuel? makes sense

Goblin · August 22nd, 2008, 01:42 AM

87 unleaded is fine. No need for 91-93. Even the NON-PI 4.6 cars dont need premium fuel. No where near enough compression or timing to require it.

78mach1 · August 22nd, 2008, 02:11 AM

haha i always laugh at this topic.....

mustangsoldier · August 22nd, 2008, 02:34 AM

i once had a high school kid tell me he only used 112 octane race gas in his 99 civic ex (stock except for a header intake ant catback) lol

r.barn · August 22nd, 2008, 02:46 AM

Originally Posted by 96gtponyred

does a 94 cobra require a higher octane rating then the regular 87 ??

Depends.

If timing has been bumped up over factory base setting then, maybe, yes.
If bone stock never been mod'd, no.

1slo5.0 · August 22nd, 2008, 06:49 AM

Originally Posted by 96gtponyred

does a 94 cobra require a higher octane rating then the regular 87 ??

No. Compression is 9:1. If the timing is advanced you could try 89 or 91 octane but 87 will most likely be fine.

August 21st, 2008, 10:13 PM	#1
96gtponyred Regular 94 cobra Join Date: Jul 2007 Location: MA Posts: 491 iTrader: 0 reviews	octane rating does a 94 cobra require a higher octane rating then the regular 87 ?? __________________ cobra R hood (has a vin#) bassani catback flows welded in jegs O/R H-pipe Jlt CAI Mgw shifter 03 cobra rims 3.73's (on the way!!!)

August 21st, 2008, 10:15 PM	#2
bullitt5576 Regular 2001 Bullitt Join Date: May 2008 Location: Oklahoma City Posts: 414 iTrader: 0 reviews	94 im not sure of, 96 says premium only on the guages, you might go up due to shitty ethanol __________________ MM NEW EDGE COBRA CREW #2

August 21st, 2008, 11:10 PM	#3
built351w Regular 1979 mustang 5.0 hopefully 11's when complete Join Date: Jul 2007 Location: New Hampshire Posts: 201 iTrader: 0 reviews	should say right in the manual and/or gauges. But I can pretty certainly say that you want to put premium 93 in it....... __________________ 1979 hatchback: -351w w/ 10.5:1 -Tremec TKO

August 21st, 2008, 11:32 PM	#4
93mustank Banned Join Date: Aug 2008 Location: Phoenix,AZ Posts: 3,014 iTrader: 1 reviews	No it does not __________________ PeteAndersonRacing.com

August 22nd, 2008, 01:42 AM	#6
Goblin Hardcore Enthusiast 88mm Join Date: Apr 2007 Location: Tucson, AZ Posts: 2,111 iTrader: 0 reviews	87 unleaded is fine. No need for 91-93. Even the NON-PI 4.6 cars dont need premium fuel. No where near enough compression or timing to require it. __________________

August 22nd, 2008, 02:11 AM	#7
78mach1 Hardcore Enthusiast Join Date: Oct 2007 Location: utah Posts: 1,365 iTrader: 0 reviews	haha i always laugh at this topic.....

August 22nd, 2008, 02:34 AM	#8
mustangsoldier Hardcore Enthusiast 1993 Mustang we'll find out when i come home from iraq. Join Date: Jul 2008 Location: from Lawton, OK stationed @ Ft. Hood, TX Posts: 1,860 iTrader: 0 reviews	i once had a high school kid tell me he only used 112 octane race gas in his 99 civic ex (stock except for a header intake ant catback) lol

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