2014 Chevy/GMC specs

[Got2BTru]

I'm not trying to bash GM but I just don't think they have the resources to invest in all new engines for their trucks. That has to take a massive amount of money. I also think it's why the Tundra and Titan are behind when it comes to fuel mileage. In Toyota's and Nissan's case it's more because of the number of sales are not that high to justify that big of an investment. For Ford they are all in. The F series is their bread and butter. They have to be at the front.

GM's "magic engine" was the smaller displacement 4.5L Diesel, but that got shelved with all of the restructuring, etc.

 

[Bob77064]

From what I read about the 4.5 diesel, it looked good.

 

[paulharvey]

No sides here, but I drive a 2013 f150 reg cab 4x4 at work (not my gas) that I get 16.5 to 19 with a very heavy foot.

 

[RollingsFarms]

From what I read about the 4.5 diesel, it looked good.

If they bring it out to compete with Ram it will be a game changer. Bet they won't do it though.

 

[timswi]

If they bring it out to compete with Ram it will be a game changer. Bet they won't do it though.

I doubt many are going to introduce a new, smaller diesel in the current regulatory environment...It's hard enough for them to adapt their current diesel fleet to the daily EPA reg crack downs.

I'm sure the concept is tee'd up, but the landscape has to stabilize first....Ask D.C. when that'll happen.

 

[Got2BTru]

I doubt many are going to introduce a new, smaller diesel in the current regulatory environment...It's hard enough for them to adapt their current diesel fleet to the daily EPA reg crack downs.

I'm sure the concept is tee'd up, but the landscape has to stabilize first....Ask D.C. when that'll happen.

GM is not canceling the new engine entirely and hopes the “mini” Duramax will be a viable powertrain option in the future. The company will continue to offer the 6.6-liter Duramax V-8 turbo-diesel in its heavy-duty trucks, and its light-duty pickups (and SUVs) are available with two-mode hybrid systems, as well as six-speed automatic transmissions and gasoline engines with cylinder deactivation.'

Quote from Car & Driver...

 

[Got2BTru]

One more, sorry...this is from GM's marketing machine:

DETROIT – The all-new 2014 GMC Sierra 1500 full-size pickup truck arrives at dealers later this spring with the best V-8 pickup fuel economy in the industry. Sierra’s new 5.3L EcoTec3 V-8 uses direct injection, cylinder deactivation and variable valve timing to achieve EPA estimates of 16 mpg city and 23 highway with two-wheel drive or 16/22 with four-wheel drive.

In addition to highway estimates that are 2 mpg higher than a comparable 2013 Ford V8 pickup and 3 mpg higher than a Ram V8, Sierra’s new V-8 fuel economy estimates also measure higher than those of the 2013 Ford F-150 EcoBoost V-6.

 

[jejeosborne]

Glad to see every manufacturer moving up their game with improvements to power and efficiency. Three years ago Ford rocked the industry and now Ram and GM are catching back up. I am interested in seeing the new 6.2 liter and think it might have a torque curve that beats the ecoboost.

This 5.3 is 6% better in MPG but 10% less in peak torque. Nice flat curve though for NA motor.

 

[crazyal]

GM's "magic engine" was the smaller displacement 4.5L Diesel, but that got shelved with all of the restructuring, etc.

That's a shame. Not just that it could be a very good engine but that GM probably spent lots of money to develop it only to be put on a shelf. One can only guess how many motor designs either don't pan out or are shelved due to reasons like a shifting economy. Personally I was hoping to see a quad cam 5 valve per cylinder direct inject variable timing high compression (13 to 1) aluminum block V8 engine from GM.

 

[94BULLITT]

I don't think a diesel 1/2 ton truck is worth it. Maybe 10 or 20 years ago it would have been. With todays technology a gas motor is hard to beat in that platform. If the diesels did not have to meet these stupid emission regulations things may different.