Silverado I4 only rated at 21 combined

[rperez817]

 

Well, they've won all those JD Power awards. They must know what they're doing.

 

The risk is that 2.7L 4-cylinder turbo is a completely new design. It's going into a truck that's also completely new. The last time GM launched a new generation Silverado with new engines back in 2014, there were some quality issues the first year. GM's JD Power IQS ratings for Silverado dropped before coming back up by 2015.

 

That's not to say 2.7L 4-cylinder turbo Silverado will necessarily have lots of quality problems. But keeping quality high for redesigned vehicles in their 1st year is always a challenge for automakers.

Edited October 12, 2018 by rperez817

[twintornados]

And I work at a GM dealership and the 2 I've driven got high teens. One of my former co-workers drove a 2016 and said the mileage was worse than his 2013.

 

Your're taking a sample of 2 and saying 'they all get that". It's like the liars on pickuptruck.com who say their Rams get 25+ mpg at 80mph.

 

You have to read between the lines.

.

They only get 25MPG at 80 MPH when driven off a cliff...

 

 

No sir. You mentioned that new 2019 Silverado 2.7L 4-cylinder turbo "isn't helping CAFE much". 21 mpg adjusted, 26-28 mpg unadjusted fuel economy for this truck exceeds CAFE requirement for 2019 to 2022. This helps GM with CAFE compliance. As mentioned earlier, the big question is how many of these trucks will GM sell? I think GM will get enough customers to make an impact to its CAFE numbers. Even though V8 will be much more popular.

 

GM's 5.3L V8 added DFM technology for 2019. With this engine in 2WD 2019 Silverado, fuel economy is 19 mpg adjusted and 24.6 unadjusted. This falls just short of the 25 mpg unadjusted CAFE standard for 2019-2022.

.

Yes, but how will the alleged severe turbo lag affect sales?

[rperez817]

Yes, but how will the alleged severe turbo lag affect sales?

 

It might hurt sales a bit. The bigger issue is the 4-cylinder configuration of the engine. A lot of full-size pickup buyers "gotta have a V8". They may have a hard time accepting a 4-cylinder engine in a full-size pickup, even though the GM 2.7L turbo 4 delivers more power and torque than most mid level V8 truck engines from 10 years ago.

[twintornados]

 

It might hurt sales a bit. The bigger issue is the 4-cylinder configuration of the engine. A lot of full-size pickup buyers "gotta have a V8". They may have a hard time accepting a 4-cylinder engine in a full-size pickup, even though the GM 2.7L turbo 4 delivers more power and torque than most mid level V8 truck engines from 10 years ago.

[Assimilator]

GM Trucks: ANYTHING but a V6!

Ford: V6 all the things!

Edited October 12, 2018 by Assimilator

[jpd80]

 

No sir. You mentioned that new 2019 Silverado 2.7L 4-cylinder turbo "isn't helping CAFE much". 21 mpg adjusted, 26-28 mpg unadjusted fuel economy for this truck exceeds CAFE requirement for 2019 to 2022. This helps GM with CAFE compliance. As mentioned earlier, the big question is how many of these trucks will GM sell? I think GM will get enough customers to make an impact to its CAFE numbers. Even though V8 will be much more popular.

 

GM's 5.3L V8 added DFM technology for 2019. With this engine in 2WD 2019 Silverado, fuel economy is 19 mpg adjusted and 24.6 unadjusted. This falls just short of the 25 mpg unadjusted CAFE standard for 2019-2022.

Keep in mind that CAFE is calculated on highway cycle, not the combined city/highway figure.

CAFE legislation quotes the uncorrected highway figure which is about 20% higher than the

corrected highway figure on Window stickers

 

For 2019 to 2022, the corrected fuel economy required for Silverado 1500 is 21 mpg or better.

The only versions that get worse than 21 mpg are the 6.2 4WD and the 5.3 8AT 4WD TrailBoss,

.both at 20 mpg highway.

Edited October 13, 2018 by jpd80

[jpd80]

 

 

 

It might hurt sales a bit. The bigger issue is the 4-cylinder configuration of the engine. A lot of full-size pickup buyers "gotta have a V8". They may have a hard time accepting a 4-cylinder engine in a full-size pickup, even though the GM 2.7L turbo 4 delivers more power and torque than most mid level V8 truck engines from 10 years ago.

Good point sir,

We only have to go back six years to before GM added DI to the V8s, the 4.8 V8 was discontinued

because there was no need to provide an engine option between the 4.3 V6 and the 5.3 V8......

 

and now, GM is trying to fill that very same gap with a 2.7 I-4T that doesn't sync with truck buyers.

 

If GM was really clever, it would have dropped the 4.3 DI and picked DI on the 4.8 V8, an engine

that would have more power and torque as well as deactivating four cylinders, not two like the V6.

Edited October 14, 2018 by jpd80

[bzcat]

GM's design parameter for 2.7 I4 was simple, beat their lackluster 4.3 V6 in performance and EPA mileage. It seems to have done that if you compare 2019 2.7 I4 with 2018 4.3 V6, but like I said, it was an underwhelming target.

 

One thing we haven't seen yet... 2019 EPA rating for the 4.3 V6. It would be funny if it end up being the same or better than the 2.7 I4.

 

2018 Silverado 1500 RWD 4.3V6: 18/24/20

2018 Silverado 1500 RWD 5.3V8: 16/22/18

 

2019 Silverado 1500 RWD 2.7I4: 20/23/21

2019 Silverado 1500 RWD 4.3V6: ?

2019 Silvarado 1500 RWD 5.3V8: 17/23/19 (+1/+1/+1)

 

If you apply the same +1MPG that 5.3V8 observed to 4.3V6, you can see that it will beat the 2.7I4 on highway and match the combined MPG.

Edited October 15, 2018 by bzcat

[mackinaw]

Read Richard Truett's article in Automotive News. The title, "GM Silverado has the wrong engine."

 

http://www.autonews.com/article/20181015/OEM01/181019817/general-motors-silverado-four-cylinder

[Fgts]

Read Richard Truett's article in Automotive News. The title, "GM Silverado has the wrong engine."

 

http://www.autonews.com/article/20181015/OEM01/181019817/general-motors-silverado-four-cylinder

"I'll give the four-cylinder exactly one year in the Silverado before it migrates to the Colorado"

 

This is the 2.7 real target, using it in the Silverado/Sierra probably increase the economy-of-scale of paying the R&D off quick while meeting CAFE for '25 for the moneymakers. I wouldn't be too surprised if the 2.7 shows in the base next-gen SUVs or even Camaro or so.

Edited October 16, 2018 by Fgts

[jpd80]

GM's design parameter for 2.7 I4 was simple, beat their lackluster 4.3 V6 in performance and EPA mileage. It seems to have done that if you compare 2019 2.7 I4 with 2018 4.3 V6, but like I said, it was an underwhelming target.

 

One thing we haven't seen yet... 2019 EPA rating for the 4.3 V6. It would be funny if it end up being the same or better than the 2.7 I4.

 

2018 Silverado 1500 RWD 4.3V6: 18/24/20

2018 Silverado 1500 RWD 5.3V8: 16/22/18

 

2019 Silverado 1500 RWD 2.7I4: 20/23/21

2019 Silverado 1500 RWD 4.3V6: ?

2019 Silvarado 1500 RWD 5.3V8: 17/23/19 (+1/+1/+1)

 

If you apply the same +1MPG that 5.3V8 observed to 4.3V6, you can see that it will beat the 2.7I4 on highway and match the combined MPG.

Thanks for posting those figures, they make interesting reading as most of the advantage seems to be on the city cycle.

I'm left wondering what the V6's figures might have been with an 8-speed auto, that would have been more in keeping

with buyer expectations...

Edited October 16, 2018 by jpd80