Question?

GITY UUP · 04-30-2002, 08:06 AM

What octane fuel does everyone with a stock Mustang or close to stock on this board run in their 4.6 L? I only run Mobil gas, just a personal preference. I've recently switched to 87 octane to see if it will take care of my check engine light. I used to run 87 in my 5.0, and it used to ping, I don't seem to have this pinging problem yet on my 4.6, altough, I'm only on my second tank of 87 since I bought my 2000 GT.

Just curious.

GTJim · 04-30-2002, 10:06 AM

I personally use 91 octane which is the recommended octane for my car. Typically you should use the lowest octane you can get away with, without pinging. Using any higher octane is just wasting money.

wally6761 · 04-30-2002, 10:07 AM

i've got a cobra so i run premium. i'm a little doubtful about whether it actually needs to be done. 8.5 : 1 compression shouldn't require 92+. but i'm not going to screw up an aluminum motor to find out.

04-30-2002, 08:06 AM	#1
GITY UUP Registered Member Join Date: Oct 2000 Location: Sterling, VA Posts: 43	Question? What octane fuel does everyone with a stock Mustang or close to stock on this board run in their 4.6 L? I only run Mobil gas, just a personal preference. I've recently switched to 87 octane to see if it will take care of my check engine light. I used to run 87 in my 5.0, and it used to ping, I don't seem to have this pinging problem yet on my 4.6, altough, I'm only on my second tank of 87 since I bought my 2000 GT. Just curious. __________________ I eat Chevys, fart imports and crap Mopars....

04-30-2002, 10:06 AM	#2
GTJim Registered Member Join Date: Mar 2000 Location: Rio Rancho, NM Posts: 32	I personally use 91 octane which is the recommended octane for my car. Typically you should use the lowest octane you can get away with, without pinging. Using any higher octane is just wasting money. __________________ 2001 Mineral Grey Cobra - #2277 of 3867 - MM SFC's, Bilsteins, Rear: H&R race springs, PHP IRS brace, Steeda IRS bushings, Front: MM Coilover conversion w/ Hypercoils - JBA Headers, Bassani X-pipe, Dynomax Ultra-Flow catback - Procharger P-1SC Stage II

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Another tire question	96Saleen	Modular Madness	6	02-10-2004 05:27 PM
A stupid question I hate asking about exhaust sound	jwboner	Windsor Power	4	08-05-2003 05:55 PM
simple question	Lonzo	Classic Mustangs	3	09-10-2002 09:37 AM
Question about 2002 Ford Mustang Cd Deck	nissanNICK	Windsor Power	0	03-07-2002 10:08 PM
Newby here, I have a question on Odometers	mustangmama	Blue Oval Lounge	3	03-03-2001 06:43 AM

04-30-2002, 10:07 AM	#3
wally6761 Registered Member Join Date: Mar 2002 Location: St Louis Posts: 47	i've got a cobra so i run premium. i'm a little doubtful about whether it actually needs to be done. 8.5 : 1 compression shouldn't require 92+. but i'm not going to screw up an aluminum motor to find out.