10-26-2015, 02:35 PM
Last edit by: IB Advertising
See related guides and technical advice from our community experts:
Browse all: Powertrain Guides
- Ford Mustang Gt 1996 to 2004: Fuel Information
Important information to help you understand your Ford Mustang
Browse all: Powertrain Guides
Do I need premium gas in GT?
10-06-2011, 01:37 PM
#1
2nd Gear Member
Thread Starter
Join Date: Jan 2011
Location: Texas
Posts: 268
Do I need premium gas in GT?
I've always used regular 86 octane gas in my 2002 GT, but I was thinking about trying a tank full of 90 octane. Would that make the engine run a little stronger? It runs fine on the 86, but does seem a bit sluggish at times. I think the compression is 9.4:1, which seems borderline high to me, but I don't know anything about the computer adjustments to gas quality on this car.
10-06-2011, 01:40 PM
#2
5th Gear Member
Join Date: Nov 2005
Location: MN
Posts: 4,412
The stock tune is designed to run off standard octane fuel. There should be no need to run a higher octane fuel until you adjust the tune to require it.
If the car feels sluggish it could be time for tune up or could a multitude of other things.
If the car feels sluggish it could be time for tune up or could a multitude of other things.
10-06-2011, 01:57 PM
#3
4th Gear Member
Join Date: Jun 2010
Location: TEXAS
Posts: 1,452
no higher octane gas want help that. the higher the octane the mre resistant it is to detonation and a few more things that doesnt need to be gone into detail about bc in short no you dont need higher octane and it want fix your issue.
10-06-2011, 02:19 PM
#4
Foghorn Leghorn
Join Date: Dec 2006
Location: I reside in a near constant state of amazment.
Posts: 2,923
The gas is crap and higher octane gas is crap with higher octane.
My cousin delivers fuel for Marathon and he told me that the trailers that deliver ethanol to the refinery have 4 gaskets that have to be replaced 3 times a week because the ethanol is so 'hot'.
I wonder how many people around the world are hungry going today because Algore insisted on using our corn for making gas.
My cousin delivers fuel for Marathon and he told me that the trailers that deliver ethanol to the refinery have 4 gaskets that have to be replaced 3 times a week because the ethanol is so 'hot'.
I wonder how many people around the world are hungry going today because Algore insisted on using our corn for making gas.
10-06-2011, 03:35 PM
#5
5th Gear Member
Join Date: Sep 2006
Location: Northwest Ohio (Fort Wayne Area)
Posts: 4,760
Don't waste your money on higher octane unless the car is setup.for it.
And on the ethonal subject e85 ftmfw although I think they should use alternate options other than corn to make it.
And on the ethonal subject e85 ftmfw although I think they should use alternate options other than corn to make it.
10-06-2011, 07:56 PM
#6
TECH SAVANT
Join Date: Dec 2006
Location: Saint Augustine, FL
Posts: 10,938
10-06-2011, 11:02 PM
#8
2nd Gear Member
Join Date: Oct 2011
Location: Texas
Posts: 283
check to see if your butterfly valve is gunked up, could be your sluggish problem.
just pop off the intake boot and take a look, if black and oily, id clean in
10-06-2011, 11:45 PM
#9
3rd Gear Member
Join Date: Feb 2011
Location: Maryland
Posts: 566
You can buy a tuner from AM and get a 93 octane tune. Than running 93 octane will make a difference.
10-07-2011, 12:22 AM
#10
TECH SAVANT
Join Date: Dec 2006
Location: Saint Augustine, FL
Posts: 10,938
from the shop manual:
I cannot count the number of idle problems that I have traced back to someone deciding to "clean" the black gunk, I.e. special coating, from the TB bore and plate...