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Discussion Starter · #1 ·
I was wondering what octne gas I should be using in a stock 2000 v6? I know once it's moded I will see a benifet. But will there be any noticable differance by using 93:headscratch: octane gas instead of 87?
 

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Not a thing without the proper tune.
 

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Yea it wouldnt make much of a difference, it wouldnt even be worth payin the extra for premium. Just get a nice tune on it first.
 

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Discussion Starter · #4 ·
That's hat I figured and I have been using 87 so far. Thanks
 

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If you get tuned for 91 octane then you will see a difference..as others said it won't do you any good otherwise...the only reason to do this would be if you were pinging when using 87...

btw a quick remark, try using the search button above, every single one of your questions has been covered and you will learn more if you research past threads..
 

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I used to put the higher octane fuel in my stock V6 last summer. To be completely honest, it actually made my car run like ****. Not right at first, but gradually I started seeing the acceleration was crappy and my engine started missing. I thought the plugs and wires needed replaced, so I replaced them and it was still missing. I started putting 87 back in there and it resolved itself. I came to the conclusion that if the computer is stock programmed for 87, just keep putting that in, otherwise it's just a waste of $.
 

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I used to put the higher octane fuel in my stock V6 last summer. To be completely honest, it actually made my car run like ****. Not right at first, but gradually I started seeing the acceleration was crappy and my engine started missing. I thought the plugs and wires needed replaced, so I replaced them and it was still missing. I started putting 87 back in there and it resolved itself. I came to the conclusion that if the computer is stock programmed for 87, just keep putting that in, otherwise it's just a waste of $.
live and learn :bigthumbsup
 

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Discussion Starter · #8 ·
Ya I let my mother borrow it and she filled it up with 93 before she gave it back. It doesn't seem to have the same power as it did wit 87.
 

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Ya I let my mother borrow it and she filled it up with 93 before she gave it back. It doesn't seem to have the same power as it did wit 87.
youre lucky you have 93 octane tho...California = NO 93!

if you get your car tuned for it you will notice a difference..
 

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Just stick to 87, 91 or 93 (depending what octane is in your area) will not make much of a difference without a tune. Go get that tuner and you'll be on your way to better utilizing the higher octanes. Gas prices are a bummer right now though :(
 

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Discussion Starter · #11 ·
I will be getting a tuner, but want to do the CAI and exsaust first. I can't wait to get everything done, the CAI and exsaust parts are allready on order. I will be buying some 17 Cobra R rims w/ 255/40/zr17's within a couple of weeks also.
 

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Enjoy the mods. The rims will be a nice addition:bigthumbsup
 

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Discussion Starter · #13 ·
I drove the car today after switching back to 87 and had more power, and got better gas mileage.
 

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I put 93 In the 03 Cobra and 87 in my stang....never had a problem though I will be switching soon to 93...Got me some Mods ha ha ha
 

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I have a 93 octane tune :) Makes a HUGE difference!
 

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I use a 95 octane gas. I live in Europe ( Slovenia ). We only have 95, 98 and 100 octane gas avalible...

I just got the Mustang (V6 3.8L 2001) 1 week ago ( my first). Thay are very hard to get in this part of Europe...

Does enyone think I`m going to have problems using the 95 octane?...
 

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I use a 95 octane gas. I live in Europe ( Slovenia ). We only have 95, 98 and 100 octane gas avalible...

I just got the Mustang (V6 3.8L 2001) 1 week ago ( my first). Thay are very hard to get in this part of Europe...

Does enyone think I`m going to have problems using the 95 octane?...
we dont have anything above 93 octane unless you get race gas = 100 octane
 

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i have 93 octane in my area. I see the only advantage of 93 is in my area that it doesnt have ethonol added to it. Also 93 has less additives and it will keep you engine cleaner.
 

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Discussion Starter · #20 ·
I use a 95 octane gas. I live in Europe ( Slovenia ). We only have 95, 98 and 100 octane gas avalible...

I just got the Mustang (V6 3.8L 2001) 1 week ago ( my first). Thay are very hard to get in this part of Europe...

Does enyone think I`m going to have problems using the 95 octane?...
If you bought your car there it should have a factory tune for the gas that is available in your area.:bigthumbsup When I was in Japan I noticed that the cars there had more power and ran on higher octane gas. :DThe military vehicles that we had that ran on gas didn't run as well on gas bought in town. The hummers did well on it though. You'd add a qt of 90wieght oil for every 5 gallons of gas. They had more power on that gas.
 
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