93 octane

[zworld]

I just found a gas station that has 93 octane that is 30% ethanol. This isn't harmful to my engine is it?

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[Bikeman315]

I just found a gas station that has 93 octane that is 30% ethanol. This isn't harmful to my engine is it?

As our engines are not designated for Flex Fuel the answer to your question is most likely not. Get a tune and go E85.

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[Zathras]

Seriously, 30%? I really, really would not recommend that. My 2018 owners manual says nothing higher than 15% ethanol, unless you have a flex fuel vehicle (which a stock mustang GT is not)

 

[Ecoboosted]

No bueno

 

[Schwerin]

Our engines(computer tunes) are designed for up too 10% E. I would NOT run 30%.

 

[WildHorse]

Our engines(computer tunes) are designed for up to 10% E

15%.

 

[WildHorse]

I just found a gas station that has 93 octane that is 30% ethanol. This isn't harmful to my engine is it?

Did you test it for ethanol content?

 

[dn1984]

holy crap...i would rather run it on 87 than that

 

[Helios]

You guys have no clue wtf, yes you can run that fuel in your gen3. And better than that (its going to blow away any 87/89/91/93 without ethanol)
This car needs close to 94 octane to deliver the full 460 hp claim by ford. And they LOVE ETHANOL.

Even if the gas cap says 10%, Its not worse than all the guys running E85. The car can accept it do your research if you doubt.
You will get worse gas mileage, but better performance.

 

[Helios]

All the guys here that ran times of 11.6 bone stock, are running our 94oct (20% ethanol). And i fucking wish i had 30% content at the pump

 

[WildHorse]

You guys have no clue wtf,

Huh? All I mean is that I have never seen 93 pump with 30% ethanol content. This summer I'll be mixing X98 with 91 to get 15% ethanol content on my 93 tune. That's within the 'safe' 5% fuel trimming.

 

[Helios]

Huh? All I mean is that I have never seen 93 pump with 30% ethanol content. This summer I'll be mixing X98 with 91 to get 15% ethanol content on my 93 tune. That's within the 'safe' 5% fuel trimming.

Yes 30% ethanol is rare for 93/94, not impossible. Some petrol supplier are lying about the percentage they blend
Petro-can over here calls out 10% on their website, and the real content is 20%

 

[wazslow]

You guys have no clue wtf, yes you can run that fuel in your gen3. And better than that (its going to blow away any 87/89/91/93 without ethanol)
This car needs close to 94 octane to deliver the full 460 hp claim by ford. And they LOVE ETHANOL.

Even if the gas cap says 10%, Its not worse than all the guys running E85. The car can accept it do your research if you doubt.
You will get worse gas mileage, but better performance.

Guys running E85 are tuned! The car in stock form is not designed to run on fuel with 30% ethanol. The car may run lean as it takes a lot more ethanol than gasoline for the air/fuel ratio to be correct. The information you are providing is incorrect.

 

[Zinc03svt]

93 w/ E30 is rare, but your car will run it fine. I did quite a bit of logging on stock tune with E20-40 to see what timing and a/f looked like. Ignore the E haters.

 

[WildHorse]

I did quite a bit of logging on stock tune with E20-40 to see what timing and a/f looked like.

A 15% fuel trim is quite the spread.. would figure it would be lean AF.

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