LFX fuel rating. - Page 3 - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

KMPrenger · 11-30-2012, 05:16 PM

If you found a page stating that I'd be curious to see it. I just looked at the Chevrolet.com website. If you look under the model overview for the Impala, it says its LFX V6 is E85 compatible, but does not say that for the Camaro.

SC2150 · 11-30-2012, 05:24 PM

KM is correct on the LLT, and since it is 11.3-1 CR it will make more power AND give better fuel economy if 91-93 is used.

On the LFX there are high and low octaine tables and if you run 87 the engine produces less poer and mpg due to the less amount of ign timing. The reset to the high octaine table isnt always automatic and a fuel trim relearn and octaine table reset may be neccesary.

The dealers know so little other than marketing...same w/most service departments.

The ability to run on 87 is for marketing, same as 100k mile to change plugs. Sure, they will run fine on 87.....but not near at their potential.

Henry G. · 11-30-2012, 06:49 PM

Quote:

Originally Posted by SC2150

KM is correct on the LLT, and since it is 11.3-1 CR it will make more power AND give better fuel economy if 91-93 is used.

On the LFX there are high and low octaine tables and if you run 87 the engine produces less poer and mpg due to the less amount of ign timing. The reset to the high octaine table isnt always automatic and a fuel trim relearn and octaine table reset may be neccesary.

The dealers know so little other than marketing...same w/most service departments.

The ability to run on 87 is for marketing, same as 100k mile to change plugs. Sure, they will run fine on 87.....but not near at their potential.

This makes sense. Power=mpg (if you keep your foot outta it)

Yohan · 11-30-2012, 07:40 PM

@ Tracey, so if dealer puts 87 before pulling off lot, and owner then switches to 93, u mean that the LFX wont automatically adjust tables? So how come fuse pull doesnt seem to work on LFX?

Blues45th · 11-30-2012, 08:04 PM

So if fuse pull doesn't work on it tracey then what gets it to relearn. Also sent pm. Thanks

CyberPunk223 · 11-30-2012, 08:08 PM

I'm going to email GM customer service and see if I can get an answer on this.

KMPrenger · 11-30-2012, 08:17 PM

Quote:

Originally Posted by CyberPunk223

I'm going to email GM customer service and see if I can get an answer on this.

I'd be very suprised if GM customer service had a clue about octane tables and how higher octane gas could help the LFX run better. They are just going to tell you that 87 and higher is recommended.

CyberPunk223 · 11-30-2012, 08:33 PM

yep, that's all they said. They forwarded the question to a Social Media rep to research it for us. i sent alink to this thread so maybe we'll get an answer from GM.

jschlitz2 · 12-02-2012, 02:15 PM

I am glad to see all the input I didn't think my question would create quite a showing but glad to see. Right now I think I will keep running 91 octane can't hurt and not worried about price only the good stuff. Never E-85.

SC2150 · 12-02-2012, 02:46 PM

Unhook negative batt terminal in trunk, turn head light switch on to deplete any stored voltage, then re connect negative cable and it will relearn.

CDCNY · 12-02-2012, 03:04 PM

Quote:

Originally Posted by jschlitz2

I am glad to see all the input I didn't think my question would create quite a showing but glad to see. Right now I think I will keep running 91 octane can't hurt and not worried about price only the good stuff. Never E-85.

E-85 will throw the CEL.

Roll_the_Dice · 12-02-2012, 03:05 PM

Quote:

Originally Posted by SC2150

Unhook negative batt terminal in trunk, turn head light switch on to deplete any stored voltage, then re connect negative cable and it will relearn.

Great thread....I will try this next time I fill up. I have been using 87 octane, but would pay the extra $ for premium if it pays dividends...

Chi-One · 01-03-2013, 06:40 PM

Quote:

Originally Posted by speedygonzales

You do realize the LFX can use E85.

I beg your pardon, Speedy................
The manual for my 2013 LFX states ".....E85(85% ethanol) and other fuels containing more than 15% ethanol must not be used in vehicles that were not designed for those fuels."

KaBoom1701 · 01-03-2013, 11:04 PM

Quote:

Originally Posted by SC2150

Unhook negative batt terminal in trunk, turn head light switch on to deplete any stored voltage, then re connect negative cable and it will relearn.

11-30-2012, 05:16 PM	#29
KMPrenger Drives: 16 Camaro SS, 15 Colorado Join Date: May 2009 Location: Jefferson City, Missouri Posts: 13,944	If you found a page stating that I'd be curious to see it. I just looked at the Chevrolet.com website. If you look under the model overview for the Impala, it says its LFX V6 is E85 compatible, but does not say that for the Camaro. __________________ 2016 Camaro 1SS - 8-speed - NPP - Black bowties 2010 Camaro 1LT V6 (Sold. I will miss her!)

11-30-2012, 07:40 PM	#32
Yohan Drives: 2012 Camaro V6 1LT Join Date: Jun 2012 Location: Fort Lauderdale, FL Posts: 287	@ Tracey, so if dealer puts 87 before pulling off lot, and owner then switches to 93, u mean that the LFX wont automatically adjust tables? So how come fuse pull doesnt seem to work on LFX? __________________ [C.A.I. intake \| VMax TB \| Solo Mach X-LLT Catback \| Solo High Flow Cats \| TSW Interlagos 20x9 Fronts, 20x10 Rears w/ Nitto Invos]

11-30-2012, 05:24 PM	#30
SC2150 Account Suspended Drives: 2012 Camaro RS, RX supercharged Join Date: Dec 2009 Location: Bradenton, FL Posts: 6,063	KM is correct on the LLT, and since it is 11.3-1 CR it will make more power AND give better fuel economy if 91-93 is used. On the LFX there are high and low octaine tables and if you run 87 the engine produces less poer and mpg due to the less amount of ign timing. The reset to the high octaine table isnt always automatic and a fuel trim relearn and octaine table reset may be neccesary. The dealers know so little other than marketing...same w/most service departments. The ability to run on 87 is for marketing, same as 100k mile to change plugs. Sure, they will run fine on 87.....but not near at their potential.

11-30-2012, 08:04 PM	#33
Blues45th ......................... Drives: 45th anniversary edition v6 3.6L Join Date: Sep 2012 Location: Dunedin, Florida Posts: 920 View My Garage	So if fuse pull doesn't work on it tracey then what gets it to relearn. Also sent pm. Thanks

11-30-2012, 08:08 PM	#34
CyberPunk223 Account Suspended Drives: 2012 LS Camaro Join Date: Nov 2012 Location: Hagerstown, MD Posts: 383 View My Garage	I'm going to email GM customer service and see if I can get an answer on this.

11-30-2012, 08:33 PM	#36
CyberPunk223 Account Suspended Drives: 2012 LS Camaro Join Date: Nov 2012 Location: Hagerstown, MD Posts: 383 View My Garage	yep, that's all they said. They forwarded the question to a Social Media rep to research it for us. i sent alink to this thread so maybe we'll get an answer from GM.

12-02-2012, 02:15 PM	#37
jschlitz2 Drives: 2012 Camaro 2 LT RS Join Date: Jun 2012 Location: Oklahoma City, OK Posts: 23 View My Garage	I am glad to see all the input I didn't think my question would create quite a showing but glad to see. Right now I think I will keep running 91 octane can't hurt and not worried about price only the good stuff. Never E-85.

12-02-2012, 02:46 PM	#38
SC2150 Account Suspended Drives: 2012 Camaro RS, RX supercharged Join Date: Dec 2009 Location: Bradenton, FL Posts: 6,063	Unhook negative batt terminal in trunk, turn head light switch on to deplete any stored voltage, then re connect negative cable and it will relearn.