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Old 05-31-2012, 06:18 AM   #1
Jonzmaro
 
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Most Comprehensive White Sheet on LFX I've seen

http://gmpowertrain.com/PowertrainFi..._LFX%20V-6.doc

Learned a few things I did not know. This is simply a GREAT engine. GM
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Old 05-31-2012, 07:56 AM   #2
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read it takes E85? Though it says no in the owners manual. so can you put e85 in these things or not?
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Old 05-31-2012, 08:43 AM   #3
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Quote:
Originally Posted by Camaro588 View Post
read it takes E85? Though it says no in the owners manual. so can you put e85 in these things or not?
According to that white sheet you can. The computer recognizes the different fuel and adjusts for it.
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Old 05-31-2012, 08:53 AM   #4
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Quote:
Originally Posted by Jonzmaro View Post
http://gmpowertrain.com/PowertrainFi..._LFX%20V-6.doc

Learned a few things I did not know. This is simply a GREAT engine. GM
Thanks for that link. There are certainly some impressive features. The E85 conflict is a bit disturbing, though this slick sheet implies there is no problem with burning it.

Sure would like some "official" clarification from GM/Chevrolet.
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Old 05-31-2012, 10:15 AM   #5
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Thanks for that link. There are certainly some impressive features. The E85 conflict is a bit disturbing, though this slick sheet implies there is no problem with burning it.

Sure would like some "official" clarification from GM/Chevrolet.
I have a 2012 2LS an right on the window sticker in bold black letters it said E85MAX and it is in the owners manual that E85 is fine to run as a fuel. The conflict comes from owners of a 2010 or 2011 which can't run E85 so assume no one can and keep spreading this misinformation. I run it and get about 2 mpg less than E10 89 octane with no noticeable difference in drive-ability or power. I lose a little mileage but the car the Camaro replaced got 14 mpg so I'm still ahead.
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Old 05-31-2012, 11:51 AM   #6
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My manual says its not compatible 87 and higher only???? Anyone else check your manuals.
Read manual states the following.
"the eighth digit of the VIN shows the code letter or number that Identifies the vehicles engine.
RECOMMENDED FUEL: If the vehicle has a 3.6L V6 engine VIN CODE D, use regular unleaded gasoline with a posted octane rating of 87 or higher.

so mine is in a 3 so can we put E85 in these or not?

Last edited by Camaro588; 05-31-2012 at 12:43 PM.
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Old 05-31-2012, 12:36 PM   #7
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I just got mine a month ago, and manuel doesn't say anything about being able to run E85. The person who said it says it in there owners manual can you scan it and post it up.
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Old 05-31-2012, 12:45 PM   #8
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it doesnt say you cant either
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Old 05-31-2012, 12:54 PM   #9
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LFX goes into a lot of cars... and i beleive that the fuel system would also need to be compatible. Perhaps the Camaro doesn't have the fuel system to support, and thats why the manual doesn't state E85...
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Old 05-31-2012, 01:02 PM   #10
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The only thing the manual states is you cant put in e85 if the vehicle is not designed for it. if you read my earlier post its also states that if the vin code is D you cant. LFX motors are VIN CODE 3...so im assuming you can.
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Old 05-31-2012, 01:51 PM   #11
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It depends very much on the tune. The LFX CAN run E85 in other vehicles, but not openly advertised as such on the 2012 Camaro.

That could mean that the programming to run E85 is included in the other vehicles but perhaps not on the Camaro.

Could the camaro run it if it is tuned for it? Of course. E85 has been ran in several LLT V6s and proven to make great power at a cost in fuel mileage. I'm certain you could tune the LFX to do the very same thing.

Is E85 supposed to be used in a stock 2012 V6? Not sure about that.
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Old 05-31-2012, 01:58 PM   #12
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Quote:
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The only thing the manual states is you cant put in e85 if the vehicle is not designed for it. if you read my earlier post its also states that if the vin code is D you cant. LFX motors are VIN CODE 3...so im assuming you can.
I'm not "assuming" anything. After spending $150 to get the fuel system on my lawn tractor repaired becasuse of 3 years of using 10% ethanol gas... I'm staying away from E85 until someone can officially tell me my car can handle it without causing damage.
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Old 05-31-2012, 02:00 PM   #13
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Is E85 supposed to be used in a stock 2012 V6? Not sure about that.
And that, I believe, is the question at hand.
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Old 05-31-2012, 02:04 PM   #14
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I called the Chevrolet Customer Assistance Center (800-222-1020), and the answer was...

NO

the stock 2012 Camaro can NOT use E85.

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Old 05-31-2012, 02:06 PM   #15
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Nice find!

I think I'll stick to running 87 though
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Old 05-31-2012, 02:13 PM   #16
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Thanks Hoolie.
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Old 05-31-2012, 02:25 PM   #17
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Quote:
Originally Posted by Jonzmaro View Post
http://gmpowertrain.com/PowertrainFi..._LFX%20V-6.doc

Learned a few things I did not know. This is simply a GREAT engine. GM

Thanks for posting


As far as the E85 ? it states in the Doc. posted...........
E85 Flex-Fuel Capability
E85 is a clean-burning, domestically produced alternative fuel composed of 85 percent ethanol alcohol and 15 percent gasoline. Ethanol is renewable and produces fewer greenhouse gas emissions in the combustion process. It can be produced from various feed stocks, including corn and wheat stalks, forestry and agricultural waste and even municipal waste.

The 3.6L’s flex-fuel technology is both sophisticated and durable. Hardware changes are limited to the injectors with a higher maximum flow rating. Because ethanol has fewer BTUs (less energy) than the same volume of gasoline, more fuel is required to produce the same horsepower at wide-open throttle.

A special fuel sensor is not required for the LFX engine; it uses a “virtual sensor” within the Engine Control Module that takes readings from the oxygen sensors, fuel level sensor and vehicle speed sensors to adjust the length of time the fuel injectors open for the type of fuel used.

I would assume from this that the engine is capable of using E85 but that the injectors would need to be changed to provide the proper fuel ratio
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