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. :clap: GM

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.

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. :iono:

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.

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?

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.

it doesnt say you cant either

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...

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.

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.

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.

And that, I believe, is the question at hand.

I called the Chevrolet Customer Assistance Center (800-222-1020), and the answer was...

NO

the stock 2012 Camaro can NOT use E85.

:thumbdown:

Nice find!

I think I'll stick to running 87 though :)

Thanks Hoolie.

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

Wow, I really thought the car was ready (no mods) to run E85. I thought I actually heard that on a video??

The 2012 LFX engine is E85 capable. Check the window sticker, check the white sheets. A chick at GM customer service doesn't know crap, she doesn't reference tech data. I had to take my salesman to school too when I bought the car, most salesmen don't know s#@t either. In the manual it says (pg 9-46) not to run e85 in engines not designed for it, ie the V8, the LFX is designed for it.

The "85" in E85 is not the octane, it's a percentage... 85% ethanol. The octane rating of E85 is above 100.

I am not sure if I am right buy isn't Ethanol peanut oil? If it is I know that Ethanol will destroy your fuel lines even if the car says it can run E85. I dont trust it, it ruins your fuel lines and I think can harm your engine

It doesnt say no, what manual are guys reading? Methanol is not ethanol.

Whatever, E85 is not currently relevant anyway. You spend less, but use more, unless you drive the flex Saab 9-5.

(the letter designation "LFX" was chosen because its a flex engine)

My earlier post was copied and pasted directly from my owners manual. I am not sure why the lfx cars were not given a updated manual, but you are correct they are e-85 compatable.

I read on some web sites that the 2012 camaro with the LFX motor is compatable running E85 but it does not say any where in my owners manual that you can use E85. I'm not willing to risk problems using the E85 fuel. If a car is not compatable to use E85 that fuel can reek havoc on the fuel system and the engine itself. It's simply not worth trying it to see if it works or not.

i filled up first with 85, but after 89. i have an 2012 2ls. after 8000 miles, im doing 27.7 mpg in the streets. in the highway i do like 30 - 40 mpg

Im sorry but evn tho the owners man says 87 is ok I only put 93!!!!!!

91 only for me. What is the advantage of E85? High octane but low mpg/power? No thanks. Ethanol is for drinking not driving.

You can but your simply wasting money. If you run 87 and your engine runs fine with no pinging your fine. Higher octane is needed for higher compression engines. It's your money and if it makes you feel better using it go for it but it really is a waste of money.