Gas....

D

ddasilva99

New Member

Oct 24, 2004

17

0

0

London/Scarborough, Ontario, Canada

Nov 9, 2004

#1

• Nov 9, 2004

• #1

Hey there...its the newb again.

What type of gas does a 95' 5.0 V8 take? Prem mid or reg? Keep in mind I live in Canada if that makes a difference...

Thanks,
Derek

 

Venom351R

Founding Member

Apr 27, 2002

4,548

40

98

MAINE

Nov 9, 2004

#2

• Nov 9, 2004

• #2

you can run reg but mine always ran like crap on 87 octane. Even before my timming was bumped or before the blower I started to run 93 octane b/c the car ran so much better on it. If you can afford it run the more expensive stuff, if not just fill up w/ it every once in awhile, your car will thank you for it

 

95WhiteVenom

Founding Member

Oct 27, 2002

624

0

16

Alabama

Nov 9, 2004

#3

• Nov 9, 2004

• #3

be glad you don't own a cobra. That dang premium is expensive good thing my civic will be fixed soon its costly driving a gas hog over 100 miles a day.

 

ProKiller

Founding Member

Apr 26, 2002

3,064

15

78

PA

Nov 10, 2004

#4

• Nov 10, 2004

• #4

you can run regular. and be thankful that you can. Costs me like 25 bucks everytime i fill the tank. superchargers are great, but the gas sucks.

 

Venom351R

Founding Member

Apr 27, 2002

4,548

40

98

MAINE

Nov 10, 2004

#5

• Nov 10, 2004

• #5

ProKiller said:

you can run regular. and be thankful that you can. Costs me like 25 bucks everytime i fill the tank. superchargers are great, but the gas sucks.

Click to expand...

your preaching to the quior on that one.

 

Scott_95GT

New Member

Oct 8, 2004

387

0

0

Sacramento

Nov 10, 2004

#6

• Nov 10, 2004

• #6

I always hear of people geting 93 octane at the pump. Where do you guys live? Here in California, 91 octane is premium and my stang runs so much better on the good stuff. I have also gotten my best mpg on premium. And now that I gave my timing a slight bump, premium is a must. The difference between premium and regular is only about an extra 2 bucks a fill up, which is less than ten bucks a month extra. Just put the good stuff in. Your car will thank you.

 

gcomfx.com

Founding Member

Oct 22, 2002

3,690

0

56

Republic, MO

Nov 10, 2004

#7

• Nov 10, 2004

• #7

I run 89 when not on the bottle.... and 91 or 93 when I am juicing. 93 isn't easy to find here either. Only a few stations have it.

I just bumped the timing back to 10* and am going back to the 75 shot. Trying to save a few bucks for more mods and to pay bills.

 

95WhiteVenom

Founding Member

Oct 27, 2002

624

0

16

Alabama

Nov 10, 2004

#8

• Nov 10, 2004

• #8

North Alabama only premium is 93 around here and 113 race gas at a few select stations.

 

blksn955.o

Founding Member

Mar 15, 2002

3,263

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66

st.louis mo 314

Nov 10, 2004

#9

• Nov 10, 2004

• #9

Here in STL. there are a few stations that sell like 100 or so octain(it may be 98 though) but they are hard to find and you have to fill it into a gas can you cannot put it directly into the car. Speed shops sell all the good stuff from leaded to unleaded race gas. sunnoco-to-turbo blue........smells so good......

 

go.rei GT

New Member

Nov 29, 2003

267

0

0

Az

Nov 10, 2004

#10

• Nov 10, 2004

• #10

I don't know about other states, but right now in Az we're running our winter mixtures which add 10% ethanol. This raises the octane, without "raising the octane" so to speak. So, now the 89 I normally run to avoid pinging issues is now more like 91. So now I can bump the timing and enjoy for free, or run 87, save some money and retain my regular performance.
You guys should see if your states/counties do this...just a tip for fellow stangers.

 

I

igotyofire

Member

Feb 26, 2004

774

1

19

Southern California

Nov 10, 2004

#11

• Nov 10, 2004

• #11

i dont know about you guys but my 95 cobra owners manuel says to run 87. Seeing as all of our cars cobra or GT came with the same compression stock, i belive thats what everyone should be running . I currently run 89 tho just because i dont want to risk it pinging...heh stock compression is 9.0:1 , that is low and we dont need to use high octane on our mildly stock motors , I dont care what you say!

 

HtownGT

New Member

Dec 5, 2002

544

0

0

Houston

Nov 10, 2004

#12

• Nov 10, 2004

• #12

my car runs great on 87, but a hell of a lot better with preminum

 

blksn955.o

Founding Member

Mar 15, 2002

3,263

0

66

st.louis mo 314

Nov 10, 2004

#13

• Nov 10, 2004

• #13

go.rei GT said:

I don't know about other states, but right now in Az we're running our winter mixtures which add 10% ethanol.

Click to expand...

here in St. Louis we have 10% ethanol all the time.

 

go.rei GT

New Member

Nov 29, 2003

267

0

0

Az

Nov 10, 2004

#14

• Nov 10, 2004

• #14

Since you guys never switch (summer sucks here cause not only is it 110* but the gas gets MTBE) you might be getting a lower octane w/the ethanol. For example they add it to your 89 and Sell it as 91, ect. If not, you've got it pretty good there.

 

BlackVert

15 Year Member

Oct 3, 2003

5,589

9

98

Bethesda, MD

Nov 10, 2004

#15

• Nov 10, 2004

• #15

i use regular (87 octane) gas.

 

MysteryMachine

Active Member

Jun 21, 2003

1,835

2

39

Parkesburg, PA

Nov 10, 2004

#16

• Nov 10, 2004

• #16

Sometimes I get gas and boy does it stink

My car runs like crap on low grade so I use 93 all the time

 

HISSIN50

"How long does it take to get help in here?

15 Year Member

Nov 29, 1999

31,179

33

129

Nov 10, 2004

#17

• Nov 10, 2004

• #17

go.rei GT said:

Since you guys never switch (summer sucks here cause not only is it 110* but the gas gets MTBE) you might be getting a lower octane w/the ethanol. For example they add it to your 89 and Sell it as 91, ect. If not, you've got it pretty good there.

Click to expand...

tell me about it (Tucson here). i run 15* in winter (under 90* ambient temps or so) and 10* in 110*.

 

mo_dingo

20+ Year Stangneter

Aug 26, 2003

3,031

2

58

Tucson, AZ

Nov 10, 2004

#18

• Nov 10, 2004

• #18

The lower the octane you run, the better performance you will get. PERIOD

The ONLY reason you should run anything higher than 87 octane is if you... 1. Have a power adder (SC, Turbo, N20). 2. Have a high compression motor (over 10:1 , which neither the GT's or the cobra's have)

If you have detonation with 87 octane, you need to tune your car up. If you bump the timing, and you have to run 91 octane to remove detonation, then you are not gaining any power (add timing = +hp, but add octane = -hp, so it balances itself out).

Scott

 

HISSIN50

"How long does it take to get help in here?

15 Year Member

Nov 29, 1999

31,179

33

129

Nov 10, 2004

#19

• Nov 10, 2004

• #19

the higher the octane, the lower the volatility. so it takes longer to burn. if one has artificially high compression (deposits, etc), hot spots, etc, the car can experience detonation (or preignition from carbon).

higher octane when not necessary is detrimental. however if someone is pinging, cleaning chambers, backing timing down or running higher octane are ways to help it out.

this goes along with what Scott said. (going a bit more into the relationship between advancing timing vs using slower burning fuel).

 

blksn955.o

Founding Member

Mar 15, 2002

3,263

0

66

st.louis mo 314

Nov 10, 2004

#20

• Nov 10, 2004

• #20

go.rei GT said:

Since you guys never switch (summer sucks here cause not only is it 110* but the gas gets MTBE) you might be getting a lower octane w/the ethanol. For example they add it to your 89 and Sell it as 91, ect. If not, you've got it pretty good there.

Click to expand...

I think it has to do with all the excess corn here in the midwest , I know the comp. are checked to make sure the rating is what the actual octane is so I dont know about the 89 as 91 thing. As far as MTBE well I noticed its in some of those octane boosters from what I have heard it sucks. I had a printout of how to make homemade race gas by adding things got preaty freaky.

Yes higher octane is not always good. You should run the octane your car needs. octane is the ability of the fuel to not burn or pre-ignite. Its heat tollerance (you can put a lit cigarette out in a gallon of open pump gas). You should always run the lowest octane you can without getting det. N/A.