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Old 06-10-2011, 09:24 PM   #57
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My measured mpg is about 2 mpg less always with the 10% ethanol. I checked this out back when we used to have the ethanol blend in the winter but not in the summer. It decreases our mileage 10%! I know those of you in the midwest connected with raising corn don't like to hear that but it's the facts! Ethanol is the biggest waste of time, money and energy there ever was.
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Old 06-10-2011, 09:39 PM   #58
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i take a trip every weekend to the Indian rez and get 93 for $3.91/gal , about same price 87 is at other stations around here.
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Old 06-10-2011, 09:42 PM   #59
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I use 93 only but, i'm right about at sea level and it's pretty hot here most of the year. To be honest right now i need very bit of the octane. The heat and humidity here has taken a bit of a toll on my acceleration as of late. Is it required? No. But, i want it.

I'd kill for a station anywhere near my driving path to have non ethanol blend. Nothing within 25 miles of me :(
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Old 06-11-2011, 08:23 AM   #60
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Originally Posted by daveagogo1 View Post
I use 93 only but, i'm right about at sea level and it's pretty hot here most of the year. To be honest right now i need very bit of the octane. The heat and humidity here has taken a bit of a toll on my acceleration as of late. Is it required? No. But, i want it.

I'd kill for a station anywhere near my driving path to have non ethanol blend. Nothing within 25 miles of me :(
Where are you, exactly? I know of a few places in pinellas that have it. One of them only a few minutes from the Howard Franklin. Check out the website for ethanol free, I forget the name but you can google it.

And yes, ethanol is the biggest vote buying scam waste of money yet. The only people I've ever seen support it are corn growers and their kin. If it is that great, why does it have to be subsidized? And, e-85 that everyone wants because it is cheaper actually ends up being more expensive because mpg drops so much.

And E-10 does reduce mileage. Do you really thing the EPA redid their ratings a few years ago to better reflect the real world? Lol! Before E-10 and the new EPA ratings, I always got better mpg than what my vehicle was rated for, now I get worse.
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Old 06-11-2011, 08:44 AM   #61
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Where are you, exactly? I know of a few places in pinellas that have it. One of them only a few minutes from the Howard Franklin. Check out the website for ethanol free, I forget the name but you can google it.
If your in the market, there is a new station at Park & 49th that has race fuel for around $6.00 ...
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Old 06-11-2011, 09:52 AM   #62
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I have no idea how a L99 or LS3 ecm control timing depending on the octane but on our LLT, 87 will defenitely pull timing vs 93 octane. Our LLT has a static CR of 11:3. On other cars with a cr of 11:3 I can almost guarantee that premium fuel is required. The reason why GM say its ok to put 87 is because the ecm will simply compensate for the lower octane safely bringing the timing down to be knock free with 87.

Higher the octane the higher the timing will advance on our LLT, but how far the timing will advance to is something I am still trying to figure out.
So far the timing advanced to 34*+!! with 105 octane and this is with -4* retard from stock. Our stock timing is anywhere from about 20-25 peak at WOT depending on the condition and gas.

Dont get me wrong tho.. more timing does not equal more HP. Not always.
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Old 06-11-2011, 10:18 AM   #63
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Originally Posted by bmorecam View Post
.....

Dont get me wrong tho.. more timing does not equal more HP. Not always.
It can't be a bad thing though, right?
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Old 06-11-2011, 10:25 AM   #64
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[QUOTE=Cbrenthus;3326901] Check out the website for ethanol free, I forget the name but you can google it. QUOTE]

Here it us ! ! :

http://pure-gas.org/
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Old 06-11-2011, 10:27 AM   #65
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The answer my friend, is blowing in the wind....er, I mean in my signature
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Old 06-25-2017, 07:30 AM   #66
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Sorry for necro-posting my first post here.

But, I just picked up a 2011 SS yesterday.

I'm the third owner, so I figure somewhere along the way, somebody probably put other-than-93 (or 91) in my car.

Does the group recommend that I "pull the fuse" as a starting point in my ownership of this car?

If so (yeah, I know - check the manual), where exactly is the fuse I should pull?

Thanks in advance!
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Old 06-25-2017, 07:46 AM   #67
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Did you not just read this thread?!
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Old 06-25-2017, 07:52 AM   #68
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Originally Posted by W.E.G. View Post
Sorry for necro-posting my first post here.

But, I just picked up a 2011 SS yesterday.

I'm the third owner, so I figure somewhere along the way, somebody probably put other-than-93 (or 91) in my car.

Does the group recommend that I "pull the fuse" as a starting point in my ownership of this car?

If so (yeah, I know - check the manual), where exactly is the fuse I should pull?

Thanks in advance!
YES, do it!

Under the hood fuse box, fuse #5 & #20. Best is to leave them out overnight. Nobody really knows how long they really need at minimum to be left out, so overnight is recommended.

And welcome to camaro5.com!
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Old 06-25-2017, 08:06 AM   #69
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Originally Posted by steverc View Post
My measured mpg is about 2 mpg less always with the 10% ethanol. I checked this out back when we used to have the ethanol blend in the winter but not in the summer. It decreases our mileage 10%! I know those of you in the midwest connected with raising corn don't like to hear that but it's the facts! Ethanol is the biggest waste of time, money and energy there ever was.
that is the truth,its basically inert in the combustion cycle.otherwise why would 10% ethanol blended in result in just slightly less than 10% worse mileage? rather than waste corn why not feed people or hogs or make likker?
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Old 06-25-2017, 08:08 AM   #70
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Originally Posted by bmorecam View Post
I have no idea how a L99 or LS3 ecm control timing depending on the octane but on our LLT, 87 will defenitely pull timing vs 93 octane. Our LLT has a static CR of 11:3. On other cars with a cr of 11:3 I can almost guarantee that premium fuel is required. The reason why GM say its ok to put 87 is because the ecm will simply compensate for the lower octane safely bringing the timing down to be knock free with 87.

Higher the octane the higher the timing will advance on our LLT, but how far the timing will advance to is something I am still trying to figure out.
So far the timing advanced to 34*+!! with 105 octane and this is with -4* retard from stock. Our stock timing is anywhere from about 20-25 peak at WOT depending on the condition and gas.

Dont get me wrong tho.. more timing does not equal more HP. Not always.
i use 89,just dont feel good running lawnmower gas in my car(v6)
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