My 2012 GMC Sierra
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2012 GMC Sierra Ext Cab SLE
Vortec 5.3L SFI Engine 6-Speed Auto Transmission Summit White w/Ebony |
Re: My 2012 GMC Sierra
It is equipped with:
POWER TECH PACKAGE VORTEC 5.3L V8 ENGINE W/ACTIVE FUEL MANAGEMENT 6-SPEED AUTOMATIC TRANSMISSION LOCKING REAR DIFFERENTIAL TRAILERING PACKAGE ALUMINUM WHEELS HEAVY DUTY COOLING AUTO DUAL ZONE AC BLUETOOTH FOR PHONE CD PLAYER WITH USB PORT STEERING WHEEL RADIO CONTROLS PWR SEAT ADJUSTER - DRIVER 6 WAY FOG LAMPS LOCKING TAILGATE EZ-LIFT TAILGATE CONVENIENCE PACKAGE INCL: UNIVERSAL HOME REMOTE ADJUSTABLE POWER PEDALS REMOTE VEHICLE STARTER SYSTEM REAR PARKING ASSIST ON THE JOB PACKAGE SKID RESISTANT BED LINERS BED RAIL PROTECTORS BED MOUNTED TIE DOWN HOOKS POWER REAR SLIDING WINDOW INTEGRATED TRAILER BRAKE CONTROLLER 17" ON-OFF ROAD BW TIRES REAR AXLE, 3.42 RATIO 7,000 LBS GVWR OFF-ROAD SUSPENSION PKG INCL: OFF-ROAD SKID PLATES HIGH CAPACITY AIR CLEANER |
Re: My 2012 GMC Sierra
looks great... i just bought one yesterday .. 2012... extendedcab as well. i like the 5.3 and 6speed.. nice truck
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Re: My 2012 GMC Sierra
When I bought my 2011 GMC, I found that the 93 MPH cutoff had to go. I now have changed that to a point that it does not interfere with the operation of the truck. The 5.3, with a six speed tranny is a good mix. A set of headers awakens the monster in the engine. Mine is a standard cab truck.
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Re: My 2012 GMC Sierra
Hey thanks. The truck has plenty of power for me and I am getting use to the 6 speed. I bothers me some times how it downs shifts. I have 1,400 miles so far and I like the truck but I hope the millage improves. I am only averaging 13.8 MPG :devil:
I'm only adding a few bolt on items to the truck. Vent visors, oval tubes, mudflaps, under seat storage tray, and I just ordered a Rough Country 2" leveling kit for the front ;) Nate |
Re: My 2012 GMC Sierra
I get 19 MPG average with my 2011 2wd SWB, but your 4wd will affect that some. I had the 6 speed shift points modified when I did my computer tune. I did not like the overlap sensation from the downshifts and I wanted it to shift faster than it did from the dealer. I really like the setup, now.
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Re: My 2012 GMC Sierra
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Re: My 2012 GMC Sierra
Where did you guys get the under seat storage?
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Re: My 2012 GMC Sierra
2 Attachment(s)
Here goes a before and after pics. First pic stock and second pic with a 2" Rough Country leveling kit installed. Also Lund oval step bars, rear inner wheel wells and side vent visors.
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Re: My 2012 GMC Sierra
I like it. just ordered oval bars and bed liner for mine. Thanks for the pics. Nice truck.
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Re: My 2012 GMC Sierra
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Re: My 2012 GMC Sierra
11.5mpg? I'm getting 16mpg in my '12 with a 4.8 and 4spd. I thought the 5.3/6spd was supposed to be better.
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Re: My 2012 GMC Sierra
Me too. Called GM Hot line. Phone idiot said wait until after break in. I asked what do you consider break in period. response was 5,000-7,500 miles. I said ok I guess I will just buy a gas station until then.......not to mention I would have ordered the 6.0 liter at that point.
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Re: My 2012 GMC Sierra
My 5.3 in my 2011 started at 18 to 19 MPG and it is still in that area. Standard cab, SWB, 5.3, 6 speed auto, 3.42 gears with 20" rims. I did a EFI Live tune and put headers on, and the mileage is still around 19 MPG UNLESS it is really cold outside, then it drops.
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Re: My 2012 GMC Sierra
I also have 3:42 gears which should be a + for gas mileage. The first two tanks I even eased my foot on the gas like the pedal was made from egg-shell. All my friends at the race track have 5.3's that they tow their enclosed trailers with. They tell me they are getting 11 with a trailer.......I sure hope there is something true about the break in period before gas mileage gets better or I will be regretting not going through with the deal on the FORD w/ECCOBOOST. Thanks for the input on your truck.
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Re: My 2012 GMC Sierra
Yea....TURBO'S X2....ouch
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Re: My 2012 GMC Sierra
Well I have about 4800 miles on the truck now. I am averaging 14.8 MPG city driving.
I don't have any plans on modifying the truck mechanically at this time. All my expendable money is being spent on my 67 :metal: |
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I can live with 14.8 but this 11 crap has to go...... |
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Mine is a crew cab.....15mpg I would be ecstatic with :gmc2:
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Re: My 2012 GMC Sierra
That Z71 package is killing you.
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