2014 V6 9.8 MPG! Terrible Fuel Economy! - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

moloko · 12-28-2020, 12:58 PM

Hello!
Two months ago I bought a 2014 V6 Camaro with 47k miles. The car is like new, the engine super clean, does not lose oil, the temperature works in 85 C º, all good.

But the problem it has is its exaggerated fuel consumption. With a full tank I only do 190 miles

40% highway and 60% city with little traffic (weekends)

I make it clear that I drive like a grandmother, I don't go over 2,000 RPMs and I'm not standing, I use it on weekends with very little car traffic.

I haven't used the car yet with a lot of traffic, the fuel gauge goes down very, very fast

, and while I'm standing still it consumes a lot

My previous car was a 2011 V6 Camaro, I know very well what it consumes, and with this one I made 15 MPG in the city and 22 MPG on the road, without mufflers.

The only MOD I think my 2014 Camaro has is a K&N air filter, where do you recommend me to start? I'm thinking about cleaning the MAF and changing the cone filter. I am concerned about its high consumption

DerekG · 12-28-2020, 01:20 PM

Something is definitely wrong, I can get 14 in town with the tires smoking half the time. I've got a 14 SS, not sure where to start looking, but something is wrong.

Greenhornet2 · 12-28-2020, 01:22 PM

usually you would throw codes if it was a sensor issue. does the oil smell like gas? does it run well? No skipping surging misfiring ect

TheFlyingBananaSS · 12-28-2020, 01:25 PM

Get a analysis on that thing and data log. It's as bad as mine.

redcoats1976 · 12-28-2020, 01:39 PM

something gotta be wrong .i get 21/28 with mine.

moloko · 12-28-2020, 02:32 PM

Quote:

Originally Posted by Greenhornet2

usually you would throw codes if it was a sensor issue. does the oil smell like gas? does it run well? No skipping surging misfiring ect

It's already been through the scanner, it doesn't throw codes and the oil smells normal, it does not have misfires. Even the emissions mark is green, which is all right.

The iddle runs at 680 RPM, but when I use the AC it reaches about 900 RPM and sometimes even vibrates the steering wheel, very annoying. In my previous 2011 Camaro I was always in iddle at 680 RPM no matter if I use the AC or not

It seems that the car was stopped for almost a year and a half, since it was in a car sales shop, I don't know if it had anything to do with it. I already changed the oil but it still consumes the same or more fuel

Obviously its consumption is not at all normal. I'm worried because I can't use the vehicle in peace. It makes me very nervous to see how my fuel tank empties quickly without even stepping on the car

InFiD3ViL · 12-28-2020, 03:47 PM

Damn homie. That's about the same as my Cammed LS3. I average 9.8 mpg (city driving only). A full tank shows me around 180-190 miles till empty.

How does the exhaust smell? Not sure how easy it is to smell a rich condition with cats still installed, but if it was that bad I am sure you would get a CEL. Do you have access to an ELM27 type Bluetooth scanner? You could use the Torque app or Dashcommand (or any of the dozens of other similar apps) to check your fuel trims and O2 voltages and get an idea what's going on.

You can get these type of scanners on Amazon starting at like $15 and the apps are free.

spyderbuddy · 12-28-2020, 04:10 PM

first go back to a stock air cleaner
Check to see if you have a tune
I've Heard a lot of bad things with the K&N air Cleaners

Whoomba · 12-28-2020, 05:44 PM

Yeah, mines the same motor and I get 22+. Shouldn’t need a tune for a K&N but that would be a good place to start.

BuddyLee · 12-28-2020, 08:38 PM

Bad oxygen sensors and air filter can reduce gas mileage by up to 20%. Having bad fuel injectors will cause bad mileage. If there is a fuel leak of some sort, then less fuel will make it to the engine, and then in turn make it run less efficiently.

LimaCharlie · 12-28-2020, 09:05 PM

How did you calculate the 9.8 MPG? Are you simply using the display between the gauges? The reason I ask is because it's possible you don't have a stock tune on the car. Somebody might have tuned your car and accidentally entered the incorrect tire height. If you have a tune with a taller tire height than what's actually on the car, the odometer will be affected (and affect the MPG reading on the dash).
Speaking of tires...do you have stock size tires on the car? If they are shorter than stock, it will affect the odometer in the same way.

Roader · 12-28-2020, 09:59 PM

Crazy low for your car. Almost as bad as my cam’d v8. Wife has an LLT and it got over 20mpg

Badbubba · 12-28-2020, 10:28 PM

2011 is a LLT with a Bosch ecm and the 2014 is a LFX with Delphi ecm. All the cars that I know increase rpm with a/c operation. Regardless, that gas mileage is terrible. Monitor your oil level so your not gaining. Pull the plugs. Wet? Carboned? Worn? Correct? Verified stock tune? If plugs are different than stock, would make me wonder what the previous owner did. Stock MAF? Replace the K&N with stock air box. Is the torque converter locking up? Brakes dragging? Wheels spin freely? Fluids correct level? What octane gas, ethanol %?
Possibly use an injector cleaner or get an intake cleaning. Take a few quality pics with the engine cover off.

ElderJ · 12-29-2020, 12:35 PM

Man, I have the exact same model as you, color and all (almost the exact same mileage as well). I have all stock components on my engine, only with a catch can.

I reset my MPG monitor a couple of months ago and I'm getting 23 mixed MPG on premium (93) and driving regularly, so if your math is correct, you seem to have a serious fuel issue. You sure you calculated it right? Maybe forgot to carry the 1, or something???

12-28-2020, 12:58 PM	#1
moloko Drives: Camaro V6 2011 and 2014 V6 Join Date: May 2017 Location: Sth Am Posts: 120	2014 V6 9.8 MPG! Terrible Fuel Economy! Hello! Two months ago I bought a 2014 V6 Camaro with 47k miles. The car is like new, the engine super clean, does not lose oil, the temperature works in 85 C º, all good. But the problem it has is its exaggerated fuel consumption. With a full tank I only do 190 miles 40% highway and 60% city with little traffic (weekends) I make it clear that I drive like a grandmother, I don't go over 2,000 RPMs and I'm not standing, I use it on weekends with very little car traffic. I haven't used the car yet with a lot of traffic, the fuel gauge goes down very, very fast , and while I'm standing still it consumes a lot My previous car was a 2011 V6 Camaro, I know very well what it consumes, and with this one I made 15 MPG in the city and 22 MPG on the road, without mufflers. The only MOD I think my 2014 Camaro has is a K&N air filter, where do you recommend me to start? I'm thinking about cleaning the MAF and changing the cone filter. I am concerned about its high consumption

12-28-2020, 01:22 PM	#3
Greenhornet2 Drives: 2011 Camaro 2SS LS3 Whipple Join Date: May 2019 Location: Connecticut Posts: 1,925	usually you would throw codes if it was a sensor issue. does the oil smell like gas? does it run well? No skipping surging misfiring ect __________________ Whipple 2.9 CAI ID1050x injectors ZL1 Pump JRE FPCM JMS Voltage booster JRE Rough Idle blower cam BTR .660 springs CHE trunnion kit 1 7/8 Speed Engineering Borla Atak JRE scoop 1.5" lowering springs BMR trailing arms and toe links Cradle inserts 704WHP 603WTQ 93 octane

12-28-2020, 01:25 PM	#4
TheFlyingBananaSS Evil Genius of Chevrolet Drives: 2017 Z06, 2019 XTS, 2013 SS Join Date: Feb 2017 Location: New York Posts: 3,260	Get a analysis on that thing and data log. It's as bad as mine. __________________ GPI SS2 VVT cam, ECS Novi 1500 supercharger, Corsa Extreme, Detroit Speed and BMR suspension, Circle D triple disc, Melling oil pump, LS2 chain tensioner, ATI 10% UD, DSX E85 kit, High Energy coils, BTR springs, LS2 Lifter trays, Titanium retainers, hardened push rods, FIC 1000 injectors, ZL1 pump, Mighty Mouse catch can, AEM gauges, Tial BOV, Richmond 3.91 gears, Custom gauge bezels, Speed Engineering headers, Stainless Works HF cats, DSX Aux pump, 710rwhp on E85.

12-28-2020, 03:47 PM	#7
InFiD3ViL Drives: 2010 CGM 2SS/RS LS3 Swapped A6 Join Date: Sep 2016 Location: Spring Hill, FL Posts: 4,594	Damn homie. That's about the same as my Cammed LS3. I average 9.8 mpg (city driving only). A full tank shows me around 180-190 miles till empty. How does the exhaust smell? Not sure how easy it is to smell a rich condition with cats still installed, but if it was that bad I am sure you would get a CEL. Do you have access to an ELM27 type Bluetooth scanner? You could use the Torque app or Dashcommand (or any of the dozens of other similar apps) to check your fuel trims and O2 voltages and get an idea what's going on. You can get these type of scanners on Amazon starting at like $15 and the apps are free. __________________ 2010 CGM Camaro 2SS LS3 Swapped A6 - GPI LS3 SS1 .647/.638, (224/237, 112 +4, 7º overlap) on CamMotion 8620 core, BTR Platinum .660" Dual Spring kit w/titanium retainers, CHE bronze trunnion upgrade, stock heads milled @ .015, Melling HV 10296 oil pump, TSP 1-7/8" long tube headers (W/Catless Off-road Pipes), Corsa Xtreme 3" Catback, GPI Ported/Rod Mod Intake, Stage 2 Ported Throttle Body, Vararam OTR CAI, Mike Norris Gen 2 catch can + GM 1LE clean side separator, 160º thermostat - Megan Racing adjustable coilovers (lowered 1.75"), MRR M017 10/11" wheels-Tuned by Ryan @ GPI

12-28-2020, 04:10 PM	#8
spyderbuddy Drives: 2010 RS Inferno Orange Metallic Join Date: Mar 2010 Location: Albany, Ga. Posts: 3,410 View My Garage	first go back to a stock air cleaner Check to see if you have a tune I've Heard a lot of bad things with the K&N air Cleaners Attached Images __________________ Hot Wheels Emblems and Floor Mats, Morimoto Fog Lights, PCP Hideaway Headlight Covers, BBK Headers & High Flow Cats, ZL1 Add-ons Wicker Bill, TL1/ZL1 Hood Insert, Gen5 DIY Frameless Mirror, ABL Dash Lighting & My link Navigation, Blacked out Rear Bowtie, all Sylvania led Turn Signals, Ceramic Window Tint By Nicks, MBRP Exhaust tips, GEN5 DIY Virginia Legal DRL Harness, Painted Brake Calipers, Vittesse Throttle Controller & Paddle Shifter Heritage Grill, Manual Shifter Boot, CNC Throttle Body, Trifecta Tune, Trunk Black out and Side Grills, Hot Wheels door Sills.

12-28-2020, 01:20 PM	#2
DerekG Drives: 2014 Camaro 2SS RS Join Date: Apr 2015 Location: Iowa Posts: 16	Something is definitely wrong, I can get 14 in town with the tires smoking half the time. I've got a 14 SS, not sure where to start looking, but something is wrong.

12-28-2020, 01:39 PM	#5
redcoats1976 Drives: LT W/2LT,blue metallic Join Date: Jul 2016 Location: central florida Posts: 4,927	something gotta be wrong .i get 21/28 with mine.

12-28-2020, 05:44 PM	#9
Whoomba Drives: 2024 Camaro 2SS CE Convertible Join Date: Jul 2013 Location: Texas Posts: 1,318	Yeah, mines the same motor and I get 22+. Shouldn’t need a tune for a K&N but that would be a good place to start.

12-28-2020, 08:38 PM	#10
BuddyLee Drives: 2013 Camaro 2SS/RS Join Date: Aug 2020 Location: Pacific Northwest Posts: 802	Bad oxygen sensors and air filter can reduce gas mileage by up to 20%. Having bad fuel injectors will cause bad mileage. If there is a fuel leak of some sort, then less fuel will make it to the engine, and then in turn make it run less efficiently.

12-28-2020, 09:05 PM	#11
LimaCharlie Drives: 2011 Camaro SS/RS - 2004 Silverado Join Date: Mar 2010 Location: Las Vegas, NV Posts: 2,989	How did you calculate the 9.8 MPG? Are you simply using the display between the gauges? The reason I ask is because it's possible you don't have a stock tune on the car. Somebody might have tuned your car and accidentally entered the incorrect tire height. If you have a tune with a taller tire height than what's actually on the car, the odometer will be affected (and affect the MPG reading on the dash). Speaking of tires...do you have stock size tires on the car? If they are shorter than stock, it will affect the odometer in the same way. __________________ 2011 Summit White Camaro 1SS/RS -6.2 LS3, TR6060, 3.45, G80 2004 Black Silverado 1500 2WD Regular Cab, Short Bed -5.3 LM7, 4L60E, 3.42, G80 2014 White Caprice PPV -6.0 L77, 6L80E, 2.92, G80

12-28-2020, 09:59 PM	#12
Roader Drives: Camaro Join Date: Oct 2018 Location: Alabama Posts: 673	Crazy low for your car. Almost as bad as my cam’d v8. Wife has an LLT and it got over 20mpg

12-28-2020, 10:28 PM	#13
Badbubba GrINned & JUICEd Drives: 15STI, 10Expy, 10 2SS/RS M6, 47KB1 Join Date: Nov 2009 Location: Pittsburgh, PA Posts: 1,247	2011 is a LLT with a Bosch ecm and the 2014 is a LFX with Delphi ecm. All the cars that I know increase rpm with a/c operation. Regardless, that gas mileage is terrible. Monitor your oil level so your not gaining. Pull the plugs. Wet? Carboned? Worn? Correct? Verified stock tune? If plugs are different than stock, would make me wonder what the previous owner did. Stock MAF? Replace the K&N with stock air box. Is the torque converter locking up? Brakes dragging? Wheels spin freely? Fluids correct level? What octane gas, ethanol %? Possibly use an injector cleaner or get an intake cleaning. Take a few quality pics with the engine cover off. __________________ GPI SS3 Cam & stuff,N.O. Plate(dedicated fuel tank,progressive,fuel hose upgrade,remote opener,heater,console switches),LNC2000,CTAP,ARH 1 7/8" LTs/gutted cats/X pipe/mufflers,Jet Hot coated LTs,GPI HPT Tune,CAI, Scoop,Rx Catch Can,Gates heater hose relocation, Remote clutch & auto brake res,Metco loop,Momentum Tunnel Brace,TSW Nurb 18",555 & 05,Pfadt trailing arms & toe rods,Autometer WB,Fesler Pillar Pod,LED strips (int),Lloyds floor & trunk mats,LED DRL/front turn & license plate,DRL harness,VLEDs tail lights,Plasticoat Bowties. Ord: Oct 5, 2009 Rec: Nov 19, 2009 13.17@112.6 stock

12-29-2020, 12:35 PM	#14
ElderJ Drives: 2014 Camaro 1LT Join Date: Aug 2019 Location: Central Florida Posts: 372	Man, I have the exact same model as you, color and all (almost the exact same mileage as well). I have all stock components on my engine, only with a catch can. I reset my MPG monitor a couple of months ago and I'm getting 23 mixed MPG on premium (93) and driving regularly, so if your math is correct, you seem to have a serious fuel issue. You sure you calculated it right? Maybe forgot to carry the 1, or something???