2012 2LT - Horrible gas mileage - Page 2 - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

BlackinBlack · 12-07-2012, 09:44 AM

Have it checked. My ZL1 gets better than that...

heRS · 12-07-2012, 09:54 AM

that fluttering sound - do you have the dash vents closed or open, because if you have the a/c on and air coming out the dash vents, then close the dash vents and then try using your defroster or heater you'll hear a fluttering sound until you adjust the air to be coming out the upper or lower vents.
As for the mileage, my 2010 is pulling an average of 24-25 mpg. Good luck with a resolution to that.

My Caroline · 12-07-2012, 10:00 AM

You need not pay attention to the DIC. It averages the 1 second you floored with with the 30 minutes your crused. What you REALLY need to do is take your gas receipts and calculate the average on your own. The DIC doesn't run for the whole tank, and it doesn't even run after you've turned off the car. Not only do you need to reset it every time you fill up, you need to reset it every time you turn the car off.
Notice how your average speed is probably like 30mph. If you only did that and went to the donut shop. Got back in your car and hoped on the highway for 4 hours, it wouldn't be a 30mph average. It was 30 because that's what it was when you turned the car off.

From your last fill up take your receipt. Take the number of miles you drove on that tank and divide by the number of gallons you put in. It's usually different than the DIC.

Check out my thread here. Lots of good discussion. Miles per tank is what's important, NOT the DIC.
http://www.camaro5.com/forums/showthread.php?t=225721

Bobaloo · 12-07-2012, 10:08 AM

Sounds like a take-in but while you wait do a hand calculated fuel/mileage test.

Nutbutt · 12-07-2012, 10:22 AM

Crap, I'm getting twice that with an IPF supercharger kit on my LLT. I would check the mileage manually then bring the car in to the dealer to check.

TooCool5 · 12-07-2012, 10:29 AM

Your in PA and probably experiencing the winter gas formula.

My mileage went down one winter to 15. Ran fuel injector cleaner, did a fuse pull and it came back to around 19. This is all you can expect in northern states.

Try changing your brand of gas, Sunoco or Shell 87 get me the best mileage with my V6.

RatRacer · 12-07-2012, 10:34 AM

My wife has this kind of mpg on her LS. She drives 2.1 miles to work, avg 17mph.
Do you warm up with remote start? I've found that the fuel avg is with the car running, not only moving, and saw a .2 reduction in my avg from when I previously parked, every time I do this for 5+ minutes.

BaylorCamaro · 12-07-2012, 10:36 AM

I'm supercharged and getting around 17mpg with 100% city driving. So I'd say something is going on with your car. One thing you should do is calculate your MPG the old school way with good ole' math. Maybe the ECU calculation is messed up.

mikester0612 · 12-07-2012, 10:37 AM

That's what I get with my SS and I am alway punching it out of corners.

GEEKFREEKSCOTTY · 12-07-2012, 10:45 AM

Quote:

Originally Posted by My Caroline

You need not pay attention to the DIC. It averages the 1 second you floored with with the 30 minutes your crused. What you REALLY need to do is take your gas receipts and calculate the average on your own. The DIC doesn't run for the whole tank, and it doesn't even run after you've turned off the car. Not only do you need to reset it every time you fill up, you need to reset it every time you turn the car off.
Notice how your average speed is probably like 30mph. If you only did that and went to the donut shop. Got back in your car and hoped on the highway for 4 hours, it wouldn't be a 30mph average. It was 30 because that's what it was when you turned the car off.

From your last fill up take your receipt. Take the number of miles you drove on that tank and divide by the number of gallons you put in. It's usually different than the DIC.

Check out my thread here. Lots of good discussion. Miles per tank is what's important, NOT the DIC.
http://www.camaro5.com/forums/showthread.php?t=225721

www.fuelly.com

EXCELLENT way to track MPG and other fuel trending data.

SC2150 · 12-07-2012, 10:50 AM

The more oil is ingested into the intake, the more the intake valves coke up, the less efficient the engine is, the more detonation takes place, the more timing is pulled, and less power the worse the MPG.

Also, this makes using Premium (93) all the more critical to try and reduce the detonation.

Let me know if you need more details, pictures, and solutions.

ragtop11 · 12-07-2012, 10:54 AM

I'm getting an average of 19.1 to 19.5 with city driving and a little Hwy mixed in on my SS

Frank in MD · 12-07-2012, 10:54 AM

That is exceedingly low. I avg 13 MPG, I also drive city miles but mine is an SS. Of course I understand that it isn't living up to advertised MPG but I didn't buy it for fuel economy....

TooCool5 · 12-07-2012, 10:58 AM

You could convert it to a Hybrid?
http://news.yahoo.com/blogs/this-cou...170717691.html

12-07-2012, 09:44 AM	#15
BlackinBlack Drives: 2016 Corvette Z06 Blade Silver Join Date: Jun 2009 Location: Florida Posts: 822	Have it checked. My ZL1 gets better than that... __________________ 2016 2LZ Z06 Blade Silver 2013 ZL1 BLACK on BLACK <SOLD> Roto-Fab CAI 2010 2SS/RS BLACK on BLACK <SOLD> 3" MBRP 304 Stainless Exhaust Roto-Fab CAI

12-07-2012, 09:54 AM	#16
heRS Raised by Wolves Drives: IBM 2010 2LT RS M6 Join Date: Jul 2010 Location: Spokane, WA Posts: 5,981 View My Garage	that fluttering sound - do you have the dash vents closed or open, because if you have the a/c on and air coming out the dash vents, then close the dash vents and then try using your defroster or heater you'll hear a fluttering sound until you adjust the air to be coming out the upper or lower vents. As for the mileage, my 2010 is pulling an average of 24-25 mpg. Good luck with a resolution to that. __________________ Tori click the sig pic to view my build thread

12-07-2012, 10:00 AM	#17
My Caroline Drives: Black 2011 Camaro LS Join Date: Feb 2011 Location: Texas Posts: 1,694	You need not pay attention to the DIC. It averages the 1 second you floored with with the 30 minutes your crused. What you REALLY need to do is take your gas receipts and calculate the average on your own. The DIC doesn't run for the whole tank, and it doesn't even run after you've turned off the car. Not only do you need to reset it every time you fill up, you need to reset it every time you turn the car off. Notice how your average speed is probably like 30mph. If you only did that and went to the donut shop. Got back in your car and hoped on the highway for 4 hours, it wouldn't be a 30mph average. It was 30 because that's what it was when you turned the car off. From your last fill up take your receipt. Take the number of miles you drove on that tank and divide by the number of gallons you put in. It's usually different than the DIC. Check out my thread here. Lots of good discussion. Miles per tank is what's important, NOT the DIC. http://www.camaro5.com/forums/showthread.php?t=225721 __________________ White Fender Hashes from Big Worm Graphix with Custom White Bowties GM Factory Remote Start and Factory Key Fob SS Fascia, Factory RS HIDs, Plasma P13W fog lights Non-RS to RS and fog light harness by Gen5DIY LED Interior, Trunk, and Licence Plate lights in white ZL1 Spoiler with Gen5DIY harness Factory NPP cat back Blacked out tail light bezels Factory 20 inch wheels wrapped in Nitto Motivos Lowered 1.25inch on Eibach Pro springs

12-07-2012, 10:08 AM	#18
Bobaloo Member "O'l Farts" Drives: 2012 SS Coupe/Automatic/Sunroof Join Date: May 2012 Location: Pueblo West, Colorado Posts: 272	Sounds like a take-in but while you wait do a hand calculated fuel/mileage test. __________________

12-07-2012, 10:22 AM	#19
Nutbutt Drives: 2011 RJT 2LT/RS Convertible Join Date: Nov 2009 Location: Western Massachusetts Posts: 3,381 View My Garage	Crap, I'm getting twice that with an IPF supercharger kit on my LLT. I would check the mileage manually then bring the car in to the dealer to check. __________________ 1st IPF Supercharged 2011 2LT/RS RJT Convertible

12-07-2012, 10:29 AM	#20
TooCool5 Drives: 2010 Camaro 1LS 3.6 LLT V6 325 HP Join Date: May 2009 Location: LS Posts: 4,245 View My Garage	Your in PA and probably experiencing the winter gas formula. My mileage went down one winter to 15. Ran fuel injector cleaner, did a fuse pull and it came back to around 19. This is all you can expect in northern states. Try changing your brand of gas, Sunoco or Shell 87 get me the best mileage with my V6. __________________ 2010 Camaro Auto, Inferno Orange, Titanium Interior, Gearhead Wheels AIRAID CAI

12-07-2012, 10:34 AM	#21
RatRacer Drives: 11 Synergy Green LS 15 Colorado Z71 Join Date: Oct 2010 Location: S.W. Florida Posts: 401	My wife has this kind of mpg on her LS. She drives 2.1 miles to work, avg 17mph. Do you warm up with remote start? I've found that the fuel avg is with the car running, not only moving, and saw a .2 reduction in my avg from when I previously parked, every time I do this for 5+ minutes.

12-07-2012, 10:36 AM	#22
BaylorCamaro Track > 1/4 Mile Drives: 2016 C7 Z51 Join Date: Sep 2009 Location: League City, TX Posts: 6,072 View My Garage	I'm supercharged and getting around 17mpg with 100% city driving. So I'd say something is going on with your car. One thing you should do is calculate your MPG the old school way with good ole' math. Maybe the ECU calculation is messed up. __________________ Automotive YouTube Channel / Texas World Speedway / MSR Houston

12-07-2012, 10:37 AM	#23
mikester0612 Camaro 5 Muscle Drives: 2010 CGM 2SS/RS L99 Join Date: Mar 2011 Location: Miami, FL Posts: 703 View My Garage	That's what I get with my SS and I am alway punching it out of corners. __________________ TSW Donington 22" Matte Black / Corsa Cat-Back Exhaust / Kooks Signature Stepped Headers 1 3/4" - 1 7/8" / High Flow Cats / Custom Tune / CAI Cold Air Intake / BMR 1" Lowering Springs / VMax Ported Throttle Body / Heritage Grill / Havoc Rear Diffuser

12-07-2012, 10:50 AM	#25
SC2150 Account Suspended Drives: 2012 Camaro RS, RX supercharged Join Date: Dec 2009 Location: Bradenton, FL Posts: 6,063	The more oil is ingested into the intake, the more the intake valves coke up, the less efficient the engine is, the more detonation takes place, the more timing is pulled, and less power the worse the MPG. Also, this makes using Premium (93) all the more critical to try and reduce the detonation. Let me know if you need more details, pictures, and solutions.

12-07-2012, 10:54 AM	#26
ragtop11 Drives: 2012 SS/RS Join Date: May 2012 Location: Oconomowoc, Wi Posts: 147	I'm getting an average of 19.1 to 19.5 with city driving and a little Hwy mixed in on my SS __________________ 2012 Camaro SS/RS Black and Black. added Solo Performance "J" pipes

12-07-2012, 10:54 AM	#27
Frank in MD Raining Blood Drives: 2014 SS Performance Sedan Join Date: Oct 2009 Location: facebook Posts: 2,682	That is exceedingly low. I avg 13 MPG, I also drive city miles but mine is an SS. Of course I understand that it isn't living up to advertised MPG but I didn't buy it for fuel economy.... __________________ Ordered 1/9/12 - Born 2/3/12 - Delivered 2/21/12 - '12 1SS/RS Summit White - TRADED. 2014 SS Performance Sedan #2974 - Red Hot 2 - S/R. & Spare. Built 01/09/14 #238 of 291 as configured

12-07-2012, 10:58 AM	#28
TooCool5 Drives: 2010 Camaro 1LS 3.6 LLT V6 325 HP Join Date: May 2009 Location: LS Posts: 4,245 View My Garage	You could convert it to a Hybrid? http://news.yahoo.com/blogs/this-cou...170717691.html __________________ 2010 Camaro Auto, Inferno Orange, Titanium Interior, Gearhead Wheels AIRAID CAI