** Horrible Gas Mileage ** - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

BossHogg · 04-28-2014, 09:42 AM

My SS has 48,000 miles on it and I haven't been noticing car running that bad at all.. But I filled up the other day and the gas like evaporated it seems like... I reset the mpg and driving around town it says 7.8 mpg.... Something isn't right..
Possible spark plugs or no??? Please help

ST1LE · 04-28-2014, 09:56 AM

Thats really low!!! What I would expect from a cammed car and a heavy foot. How many miles have you driven since the reset? Did you think your mileage was bad prior to the reset?

BossHogg · 04-28-2014, 10:08 AM

I reset it after every fill up... And I noticed gas going quickly so I went to mpg and it said 7.8 it normally says about 12.8 - 13.5

bkscott · 04-28-2014, 10:38 AM

Is it possible you got e85 gas by mistake?

mailclerk · 04-28-2014, 10:49 AM

Quote:

Originally Posted by BossHogg

My SS has 48,000 miles on it and I haven't been noticing car running that bad at all.. But I filled up the other day and the gas like evaporated it seems like... I reset the mpg and driving around town it says 7.8 mpg.... Something isn't right..
Possible spark plugs or no??? Please help

BossHogg,

I wonder if you need a new air filter cleaner??? Check you tire pressure and gas it up and re-test and see what happens. Otherwise a trip to the dealership is in order.

Mail Clerk

BossHogg · 04-28-2014, 10:54 AM

Bkscott man i dont think so bro.... I sure as hell hope i didnt.. Man im hoping that its like water or something, im gonna go to shell in a few minutes and fill it up, wonder if i should also use some kinda water remover/ fuel treatment

Rock-It Man · 04-28-2014, 11:44 AM

Last time I saw something like this, it was a misfire.

I see you have a tune, so maybe the dealer is not your best option.

uniqueskillz · 04-30-2014, 07:51 AM

I would check wires and plugs first. I see you have headers so you might just be melting a spark plug wire.

jbb1073 · 04-30-2014, 08:22 AM

Ran into a similar issue with my V6. Nothing seemed wrong (drive-wise), but my mileage was getting horrible. After a while, I finally got a CEL (still no change in the way the car was operating). Took it to the dealer & it turned out that the Evap Solenoid was stuck in the open position.

BossHogg · 04-30-2014, 08:37 AM

Man I hope I'm not melting a wore but if it's that then it should be an easy fix.... I'm gonna check as soon as I get to work thanks man....

TooCool5 · 04-30-2014, 05:04 PM

Its an SS which means ..... Fuse pull.

Your stuck in the wrong octane table.

strych9 · 04-30-2014, 05:09 PM

Check for codes and go from there.

BossHogg · 04-30-2014, 05:47 PM

I thought the fuse pull went out the window when the car has a tune in it...

strych9 · 05-01-2014, 02:23 PM

Quote:

Originally Posted by BossHogg

I thought the fuse pull went out the window when the car has a tune in it...

The fuse pull is a complete myth, but my opinion is in the minority.

04-28-2014, 09:42 AM	#1
BossHogg Mexican SS Drives: Black 2SS/RS Join Date: Dec 2011 Location: Lake Charles, La Posts: 338 View My Garage	Horrible Gas Mileage My SS has 48,000 miles on it and I haven't been noticing car running that bad at all.. But I filled up the other day and the gas like evaporated it seems like... I reset the mpg and driving around town it says 7.8 mpg.... Something isn't right.. Possible spark plugs or no??? Please help __________________ *Black 2010 2SS/RS...* Dyno Tune.. Volant Cold Air Intake.. Custom Installed Escort 9500 Ci Radar Smoked Tail Lights-Reverse Lights -Front/ Rear Corner Lenses Painted Bow Ties front & rear Pacesetter Long Tube Headers Magnaflow Competition Cat Back Exhaust.... Eibach Pro Lowering Kit Painted Heritage Grille 1969 Camaro Emblems *Phoenix Gold I-Amp Sound System* 22 inch Replica Wheels: VMAX Ported Throttle Body

04-28-2014, 09:56 AM	#2
ST1LE Drives: E92 BMW M3 Join Date: Oct 2012 Location: Houston Posts: 4,496	Thats really low!!! What I would expect from a cammed car and a heavy foot. How many miles have you driven since the reset? Did you think your mileage was bad prior to the reset? __________________ SOLD - 2013 1LE - Pat G Spec'd Cam, NPP with 1 7/8" Long Tube Headers with High Flow Cats, Intake w/scoop, Ported Throttle Body, and Apex 1.25" Lowering Springs. J-Rod Built and Matt@FSP Tuned

04-28-2014, 10:08 AM	#3
BossHogg Mexican SS Drives: Black 2SS/RS Join Date: Dec 2011 Location: Lake Charles, La Posts: 338 View My Garage	I reset it after every fill up... And I noticed gas going quickly so I went to mpg and it said 7.8 it normally says about 12.8 - 13.5 __________________ *Black 2010 2SS/RS...* Dyno Tune.. Volant Cold Air Intake.. Custom Installed Escort 9500 Ci Radar Smoked Tail Lights-Reverse Lights -Front/ Rear Corner Lenses Painted Bow Ties front & rear Pacesetter Long Tube Headers Magnaflow Competition Cat Back Exhaust.... Eibach Pro Lowering Kit Painted Heritage Grille 1969 Camaro Emblems *Phoenix Gold I-Amp Sound System* 22 inch Replica Wheels: VMAX Ported Throttle Body

04-28-2014, 10:38 AM	#4
bkscott Drives: 2010 Camaro 2SS/RS Join Date: Dec 2009 Location: Grand Prairie, Texas Posts: 1,608 View My Garage	Is it possible you got e85 gas by mistake? __________________ 94 Firebird Formula (Drowned 08/30/05) 2010 IBM 2SS/RS 6M Arrived 3/25/10. ADM CAI, Borla Type S Cat Back, VMAX Ported TB, LG Short Throw Shifter, 1LE Shocks, Hotchkis Sway Bars, Whiteline Cradle Bushing Inserts, Custom Powdercoated ZL1's ,Michelin Pilot Supersports, Stainless Power Headers, Solo J Pipes, AAC LED Sidemarkers, ZL1 Rockers, SLP Splitter, ADM Stage II Cam,ZL1 Diffuser,Vitesse Throttle Controller.

04-28-2014, 10:54 AM	#6
BossHogg Mexican SS Drives: Black 2SS/RS Join Date: Dec 2011 Location: Lake Charles, La Posts: 338 View My Garage	Bkscott man i dont think so bro.... I sure as hell hope i didnt.. Man im hoping that its like water or something, im gonna go to shell in a few minutes and fill it up, wonder if i should also use some kinda water remover/ fuel treatment __________________ *Black 2010 2SS/RS...* Dyno Tune.. Volant Cold Air Intake.. Custom Installed Escort 9500 Ci Radar Smoked Tail Lights-Reverse Lights -Front/ Rear Corner Lenses Painted Bow Ties front & rear Pacesetter Long Tube Headers Magnaflow Competition Cat Back Exhaust.... Eibach Pro Lowering Kit Painted Heritage Grille 1969 Camaro Emblems *Phoenix Gold I-Amp Sound System* 22 inch Replica Wheels: VMAX Ported Throttle Body

04-28-2014, 11:44 AM	#7
Rock-It Man 376 cubic inches of fun Drives: 2023 Camaro ZL1 A10 Join Date: Jul 2010 Location: MA Posts: 4,027 View My Garage	Last time I saw something like this, it was a misfire. I see you have a tune, so maybe the dealer is not your best option.

04-30-2014, 07:51 AM	#8
uniqueskillz Drives: ETMC built 700+hp Twin Turbo LS3 Join Date: Apr 2010 Location: Killeen, TX Posts: 682	I would check wires and plugs first. I see you have headers so you might just be melting a spark plug wire.

04-30-2014, 08:22 AM	#9
jbb1073 Drives: 2012 RS 1LT A6 Join Date: Jan 2014 Location: Corpus Christi, TX Posts: 8	Ran into a similar issue with my V6. Nothing seemed wrong (drive-wise), but my mileage was getting horrible. After a while, I finally got a CEL (still no change in the way the car was operating). Took it to the dealer & it turned out that the Evap Solenoid was stuck in the open position.

04-30-2014, 08:37 AM	#10
BossHogg Mexican SS Drives: Black 2SS/RS Join Date: Dec 2011 Location: Lake Charles, La Posts: 338 View My Garage	Man I hope I'm not melting a wore but if it's that then it should be an easy fix.... I'm gonna check as soon as I get to work thanks man.... __________________ *Black 2010 2SS/RS...* Dyno Tune.. Volant Cold Air Intake.. Custom Installed Escort 9500 Ci Radar Smoked Tail Lights-Reverse Lights -Front/ Rear Corner Lenses Painted Bow Ties front & rear Pacesetter Long Tube Headers Magnaflow Competition Cat Back Exhaust.... Eibach Pro Lowering Kit Painted Heritage Grille 1969 Camaro Emblems *Phoenix Gold I-Amp Sound System* 22 inch Replica Wheels: VMAX Ported Throttle Body

04-30-2014, 05:04 PM	#11
TooCool5 Drives: 2010 Camaro 1LS 3.6 LLT V6 325 HP Join Date: May 2009 Location: LS Posts: 4,244 View My Garage	Its an SS which means ..... Fuse pull. Your stuck in the wrong octane table. __________________ 2010 Camaro Auto, Inferno Orange, Titanium Interior, Gearhead Wheels AIRAID CAI

04-30-2014, 05:09 PM	#12
strych9 I'll be back... Drives: Subaru, HD Road Glide Special Join Date: Apr 2012 Location: Omaha, NE Posts: 3,036 View My Garage	Check for codes and go from there. __________________ Bye bye, Bumblebee! --------------------------------------------------------------------------------------- Build Journal My Garage GoPro Mic Hack

04-30-2014, 05:47 PM	#13
BossHogg Mexican SS Drives: Black 2SS/RS Join Date: Dec 2011 Location: Lake Charles, La Posts: 338 View My Garage	I thought the fuse pull went out the window when the car has a tune in it... __________________ *Black 2010 2SS/RS...* Dyno Tune.. Volant Cold Air Intake.. Custom Installed Escort 9500 Ci Radar Smoked Tail Lights-Reverse Lights -Front/ Rear Corner Lenses Painted Bow Ties front & rear Pacesetter Long Tube Headers Magnaflow Competition Cat Back Exhaust.... Eibach Pro Lowering Kit Painted Heritage Grille 1969 Camaro Emblems *Phoenix Gold I-Amp Sound System* 22 inch Replica Wheels: VMAX Ported Throttle Body