Jump to content

Official 6.2L fuel economy & Max Trailer numbers

Zane

Recommended Posts

Zane Senior Enthusiast

Zane

Posted
Posted

New information in short

 

6.2L Fuel economy

  • 2WD - 15mpg city / 21mpg highway
  • 4WD - 14mpg city / 20mpg highway

Max Trailering Package

  • Available on 2WD/4WD and Double Cab / Crew Cab
  • Enhanced Cooling
  • automatic-locking rear differential
  • heavy-duty 9.75-inch rear axle & 3.73 ratio
  • Increased capacity rear leaf springs
  • Revised shock tuning
  • Integrated trailer brake controler
  • 11,500lb towing capacity

GM Press Release

 

It’s Official: 2014 Silverado and Sierra Deliver Most Power

New Chevrolet, GMC light duty pickups also deliver best towing capacity in class and strong fuel economy

 

DETROIT – The 2014 Chevrolet Silverado 1500 and High Country and the GMC Sierra and Sierra Denali 1500, available this fall, with a 6.2L V-8 produces an SAE-certified 420 horsepower (at 5600 rpm) and 460 lb-ft of torque (at 4100 rpm), the most power of any pickup engine and torque of any light duty pickup truck engine.

The 6.2L V-8 available for Silverado LTZ and High Country and Sierra SLT and Denali models also delivers class-leading maximum available trailering capacity of 12,000 pounds when properly equipped.

Along with power, now comes strong fuel economy as EPA estimates for the 6.2L V-8 EcoTec3 engine technology enable 2WD Sierra and Silverado models to achieve 15 mpg city and 14 mpg city for 4WD. EPA highway estimates are 21 mpg for 2WD versions, and 20 mpg for 4WD models.

“Power and towing capacity are fundamental capabilities for full-size pickups,” said Jeff Luke, General Motors Executive Chief Engineer for full- and mid-size trucks. “The 2014 Silverado and Sierra deliver unmatched power and towing capability with a host of ingenious driver aids.”

The optional Max Trailering Package is available on 2WD and 4WD V-8 crew cab and double cab models and includes:

§ Trailering package with seven-pin and four-pin connector

§ Enhanced cooling

§ Automatic locking rear differential

§ Heavy-duty 9.75-inch rear axle with 3.73 ratio

§ Increased-capacity rear leaf springs

§ Revised shock tuning for increased control

§ Integrated trailer brake controller.

In addition to the 6.2L V8, Silverado 1500 and Sierra 1500 will offer a 4.3L V-6 SAE-certified at 285 horsepower and 305 lb-ft of torque and a 5.3L V-8 certified at 355 horsepower and 383 lb-ft of torque.

Silverado and Sierra trucks equipped with the 4.3L V-6 will have available towing ratings of up to 7,600 pounds, the highest for any base V-6 in the segment. Silverado and Sierra trucks equipped with the 5.3L V-8 and the max towing package, available later this year, will have towing ratings of up to 11,500 pounds when properly equipped.

All three engines feature direct fuel injection, Active Fuel Management (cylinder deactivation) and continuously variable valve timing, a combination not found in competitor vehicles. The engines also use a compact overhead-valve design and weight-saving components such as aluminum blocks and cylinder heads to reduce mass for additional energy savings.

All three provide the proven power, torque and dependability of a large-displacement engine, seamlessly switching to four-cylinder mode to save fuel during light-load driving. The 5.3L V-8 has EPA-estimated fuel economy of up to 23 mpg highway (2WD models), the best of any V-8 pickup, and better than Ford EcoBoost V-6. .

DanMan_S Enthusiast

DanMan_S

Posted
Posted

14 mpg in the city?! Unacceptable, I'm buying a ford!!

 

I want the max trailer package simply to get the increased cooling and the 3.73 rear end for uh...hooning purposes but it doesn't look like you can equip it on a truck with the all terrain package due to the suspension conflict. Damn.

 

Colour matching trim or more burnouts.....

Daryl LBZ Senior Enthusiast

Daryl LBZ

Posted
Posted
14 mpg in the city?! Unacceptable, I'm buying a ford!!

 

I want the max trailer package simply to get the increased cooling and the 3.73 rear end for uh...hooning purposes but it doesn't look like you can equip it on a truck with the all terrain package due to the suspension conflict. Damn.

 

Colour matching trim or more burnouts.....

 

More burnouts :D

AgDoctor Senior Enthusiast

AgDoctor

Posted
Posted

I'm thinking the better mpg numbers are for the 3.42. Still great though. If 3.73 then even better. Still getting one. Yeah!

 

Sent from my Galaxy Nexus using Tapatalk 2

 

 

Daryl LBZ Senior Enthusiast

Daryl LBZ

Posted
Posted
The 6.2l is suggested premium gas correct? Was avg. 14.5 in my 08 denali. So this engine should be a few mpg better.

 

Correct. I average 14.5 with mine which is better than I expected. I bet the new NHT will get better than that, especially when they go to the 8spd transmission.

Bravo1 Enthusiast

Bravo1

Posted
Posted

Zane,are EPA numbers based on the 3:42 axle ratio,or did EPA test a MaxTrailer,3:73.Nice fuel numbers for the EcoTec3 6.2L.Also Dan-Man you better look at EPA's website for the Ford F150 6.2L has a EPA rating of 12 city and 16 highway 13 combined.Ouch.

Zane Senior Enthusiast

Zane

Posted
  • Author
Posted

Zane,are EPA numbers based on the 3:42 axle ratio,or did EPA test a MaxTrailer,3:73.Nice fuel numbers for the EcoTec3 6.2L.Also Dan-Man you better look at EPA's website for the Ford F150 6.2L has a EPA rating of 12 city and 16 highway 13 combined.Ouch.

Not entirely sure but my guess is whatever rear-end comes standard. Most likely the 3.42. Then they are using the 3.73 for the max trailering numbers. Keep in mind, the trailering/hauling figures are not J2807 certified.

StinkyCheese Senior Enthusiast

StinkyCheese

Posted
Posted

"SAE-certified 420 horsepower (at 5600 rpm) and 460 lb-ft of torque (at 4100 rpm)" So what's the red line? Also power numbers in lower rpm would be nice to see, probably reached eventually but still curious.

Bravo1 Enthusiast

Bravo1

Posted
Posted

Zane,my guess too,until a more through testing of Chevrolet High Country 6.2L,with a 3:73,MaxTrailer package by one of the automotive news journalist possibly (Fast Lane).I thinking a rumble in the rockies with these 1/2 tons should do the trick, GM 6.2L High Country,3:73, verus F150 6.2L Platnuim,3:73 verus Rams Laramine 5.7L 3:98,8 speed. All towing 10,000 lbs ball hitch,sway bars hook up as well.As far as J2807 specs trailer/bed is along way off.Ford declined the offer of Toyota,GM to go to J2807 trailer/bed specs loads.I imagine all 3 there will go there after Ford's redesign.Ford,GM,Ram all have axle ratios very close in the 3:73,Rams is a little higher at 3:92 I believe.Ford offers a 3;73 and a 4;10.So this could be a very close contest to test the engineering levels.Ram Sport does offer a puller at 10,000 lbs as well.

Bravo1 Enthusiast

Bravo1

Posted
Posted

Just a heads up Fast Lane ran a 0-60 with a 6.2L (L86),IN A 3:42 ratio truck in Austin,Tx were (Zane was as well),he ran a 7:61 secs.Imagine what a 3:73 will run.Stab-Trac was turn off.Video is up on FastLane,its is the second video provided.

absurveyor Enthusiast

absurveyor

Posted
Posted

Thanks for the update Zane. Do you have any idea on what the actual increased spring capacities are? I have read the NHT adds 150 lbs of weight in CC trim. Still no reports on actual payload increases to match the towing increase?

crushNchowda Senior Enthusiast

crushNchowda

Posted
Posted

Just a heads up Fast Lane ran a 0-60 with a 6.2L (L86),IN A 3:42 ratio truck in Austin,Tx were (Zane was as well),he ran a 7:61 secs.Imagine what a 3:73 will run.Stab-Trac was turn off.Video is up on FastLane,its is the second video provided.

Well the "fast lane" drivers should stick to the slow lane then. C&D tested a 5.3 3.08 equipped CC @ 7.7 0-60...sooo, that time is horrific for a 6.2 w/ 3.42's

Firetiger(MN) Enthusiast

Firetiger(MN)

Posted
Posted

I'd like to get one of these too, but the Ram EcoDiesel has caught my attention with the recent reviews. If a programmer comes out for this engine it could be fantastic with the mileage and the power.

 

Maybe if Dodge has success with this model it'll finally get GM off their arse and force them to put a diesel in the 1500's.

Archived

This topic is now archived and is closed to further replies.

Go to topic listing

  • Latest Articles

  • Posts

    • bluev8
      Intermittent no-code issues on 2022.5+ V8 trucks — what did the shop fail to capture?

      By bluev8 · Posted

      That is a fair point, and I think an OBD-first proof is probably the right next step. I agree that the value is not the hardware box by itself. The marketable part would be the software: always-on capture, baseline learning, event reduction, system-specific reports, and alerts. Also agreed that if an OBD device is always plugged in and has local storage, it should not miss the event in the same way that a scanner plugged in after the fact would. The only thing I would not want to assume yet is that an ELM327-class device gives all the late-GM data needed at the rate needed. Standard OBD live data, DTCs, freeze frame, Mode 6, VIN, and calibration information are definitely the right starting point. GDS2 also proves that a lot of useful ECM data can be viewed through the DLC without needing a DTC first. The question I need to test is whether the data needed for a useful GM V8 event report is actually available through the DLC, and at a useful sample rate: - misfire counts / roughness by cylinder - AFM/DFM state - oil pressure and oil temperature - fuel trims - voltage / reset context - U-codes and communication events - calibration / software information - whether these are standard PIDs, enhanced DIDs, Mode 6 data, GDS2-only data, or not available So I think the right benchmark is: 1. Build the OBD-only version first. 2. Keep it plugged in and logging locally. 3. Compare it against GDS2 / freeze frame / HP Tuners or another higher-end logger. 4. Measure which parameters are available and at what update rate. 5. Only justify ECM-side hardware if it captures useful evidence the OBD version cannot. So you may be right: the consumer product might simply be an always-plugged-in OBD event recorder with much better reporting. A question for you: when you say ELM327 devices can already deliver all the data needed, do you mean generic OBD Mode 01 data only, or GM enhanced data as well? For a useful GM V8 report, would generic OBD data be enough, or would you expect the tool to include enhanced items like misfire by cylinder, AFM/DFM state, oil pressure/oil temp, U-codes, and calibration information?
    • Buckwild27
      Gas Prices

      By Buckwild27 · Posted

      I agree. 
    • Atlas
      Gas Prices

      By Atlas · Posted

      87 down as low as $5.14 here... winning!
    • Atlas
      Wow I'm in a pickle. (Broke down truck) and a story.

      By Atlas · Posted

      Progress... sort of.   Intake is disassembled, spider is out, fuel lines removed. Used a torch on the stripped screw with the lower intake off, much easier when I've got the intake sitting on my workbench, I made it talk. Walked right out with a pair of vice grips once it was nice and toasty hot.   New parts are piling up on my service cart waiting to be installed. Distributor, temperature sensor, new gaskets, fuel line kit, themostat, water neck.   My new pickle is I don't want to spend $600 on a replacement spider. I'm not sure IT is bad. I'm probably splitting hairs. Or it's $300 to send mine away and another 3 weeks of the truck just sitting. I have half a mind to assemble everything with the old spider to see if I can get away with just replacing the fuel pressure regulator to be safe. The obvious issue was the gushing high pressure fuel line which will be replaced. Getting to the spider really isn't that hard, and now I know what I'm doing , swapping it would be a breeze should it absolutely need one. Stupid, or smart?   The part that gives me pause is replacing the distributor. Well, it's already out. And I didn't mark it, whoopsie! Engine was at TDC when I removed it, I know that, so upon correct reinstall the metal tip on the rotor should point to the TDC mark on the distributor because that's where it was pointing on the old distributor. Worst case I'm a tooth off and have to re-stab it.   But then, what? I assume the truck will start. It doesn't appear the timing can be set. Here's the problem: These distributors can't be rotated but a degree or two, by design. What I read is Cam ****** needs to be -2 to +2 degrees, ideally at 0 (and checked/set above 1000 rpm). There should be enough wiggle to get that properly set, but checking the reported value is another potential issue. My Actron 9185 scanner says it supports enhanced GM PIDs and Cam ****** is one of them but it's unclear that I'll be able to correctly see it over OBD 1.5. I can see why people end up junking these things with life left in them. They're an absolute nightmare with tweener-year diagnostics/electronics and unobtanium parts.   Fingers crossed it starts and idles nicely. There can be hope, right? I'ma buy a lottery ticket the same day just in case.   Next steps..DO IT. I have not installed an intake before so I've been reading and watching a lot. Some say NO RTV except on china walls, some say DO RTV on water ports but not fuel/air intake. 1/4 or 3/8 bead on China walls? I think my strategy will be, obviously, RTV china walls with overlap on the gasket corners. Chapstick-style RTV the water ports. Leave intake ports dry. The only set of intake gaskets I could find locally are Edelbrock performance gaskets (uh...for an asthmatic 190hp V6? LOL) so we'll see how they do.   #NoToolLeftBehind. It took an hour, but my recovery mission for my deep 10mm socket was successful. It had rolled down the bellhousing and wedged itself between what I think are the fuel lines? I couldn't see it at all, but with a junk antenna I had laying around, I blindly went poking/sweeping for it, heard it clink, raised the truck, and caught a sliver glimpse of chrome with a flashlight way up there in Narnia. I had pushed it farther along the lines holding it captive, but within access of severely improvised tools, poking and cursing at it to finally knock it free to where I could get a fingertip on it to bring it home.    Not much to see.      
    • RyanbabZ71
      Gas Prices

      By RyanbabZ71 · Posted

      Thats crazy considering im right next door (Indiana)

  • GM-Trucks.com Clubs

  • Popular Contributors

×
×
  • Create New...