Good Sam Club Open Roads Forum: 2021 Chevy Tahoe with 3.0 Diesel
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 > 2021 Chevy Tahoe with 3.0 Diesel

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FishOnOne

The Great State of Texas

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Posted: 11/28/20 09:00am Link  |  Quote  |  Print  |  Notify Moderator

Not a bad looking SUV with a diesel to boot. Estimated 28 hwy mpg. Probably a great SUV for someone who drives a lot of hwy miles and tows.

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Lwiddis

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Posted: 11/28/20 09:13am Link  |  Quote  |  Print  |  Notify Moderator

I’m not impressed with the new Tahoe’s diesel mileage. My 2015 5.3L gas Tahoe did very well without the premium price.

[image]


Winnebago 2101DS TT & 2020 Chevy Silverado 1500 LTZ Z71, 300 watt solar-parallel & MPPT, Trojan T-125s. TALL flag pole. Prefer USFS, COE, BLM, NPS, TVA, state & county camps. Bicyclist! 14 year Army vet-11B40 then 11A - (MOS 1542 & 1560) IOBC & IOAC grad


blofgren

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Posted: 11/28/20 10:37am Link  |  Quote  |  Print  |  Notify Moderator

This looks like it will be a great SUV for GM. The biggest downside is the cost.

We will be looking for a new SUV in the next year or two and the GM will be on the list. I'm not sure that the diesel option will be worth it, but I'll definitely consider it. It's pretty hard to beat the tried and true GM V8's! [emoticon]


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ferndaleflyer

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Posted: 11/28/20 03:06pm Link  |  Quote  |  Print  |  Notify Moderator

I have one of the last full size blazers with the 6.5 turbo diesels (1994) with around 300,000mi on it and when broke in it got 30mpg and today gets pretty near 27-28mpg. 27 with that little engine is not very impressive.

Bionic Man

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Posted: 11/28/20 04:32pm Link  |  Quote  |  Print  |  Notify Moderator

Lwiddis wrote:

I’m not impressed with the new Tahoe’s diesel mileage. My 2015 5.3L gas Tahoe did very well without the premium price.

[image]


You either have a REAL special vehicle, or your computer is way off and you would be better off hand calculating your mileage. Fuelly says a 2015 Tahoe will average 15.9 MPG, tracked over 1,000,000 miles.

[image]




I’m a fan of the 3.0 diesels. The main reason I didn’t even consider a Burb when I upgraded my Yukon XL last year was I didn’t want to be stuck with the 5.3. If the 3.0 diesel was available last year, I very well may have stayed with GM.


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SweetLou

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Posted: 11/29/20 07:53am Link  |  Quote  |  Print  |  Notify Moderator

So who makes their 3.0 diesel and also who's 10 speed transmission is this GM or someone else like Allison?


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carringb

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Posted: 11/29/20 09:35am Link  |  Quote  |  Print  |  Notify Moderator

SweetLou wrote:

So who makes their 3.0 diesel and also who's 10 speed transmission is this GM or someone else like Allison?


The 3.0 was developed at the Turin R&D Center in Italy. This was one of the parts of Opel that GM kept when they sold off most of their European operations. The 10 speed is the same Ford-designed, GM-manufactured unit they started putting in the Camaro in 2017 and the Silverado in 2019. The variant used behind the 3.0L has a different torque converter from other installations, and includes a "centrifugal pendulum absorber" to dampen any vibration that you might otherwise feel at lower RPMs.

https://web.archive.org/web/20180325045257/http://articles.sae.org/12015/

https://media.chevrolet.com/media/us/en/......../news/us/en/2019/jun/0603-silverado.html

I think it's pretty cool from a power and efficiency standpoint. I have my reservations about the rear-mounted timing chain, and belt-driven oil pump. Both sound like Audi-levels of maintenance nightmares when they get old.


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colliehauler

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Posted: 11/29/20 10:08am Link  |  Quote  |  Print  |  Notify Moderator

Carringb I wonder what percentage would be traded before 100k miles? I also wonder what it will do to resell when it approaches the 150K mile mark?

I still have my old Excursion with the 7.3 Diesel and solo hwy it does about 17 mpg. I wonder if Ford will stick the small Diesel in the Expedition to match the GM offerings?

stsmark

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Posted: 11/29/20 10:16am Link  |  Quote  |  Print  |  Notify Moderator

It is an interesting engine. Seems like more electronic actuators than any other engine that comes to mind. A neighbor has Silverado with it and he tows a pontoon boat or TT with it never had a conversation about though. The EGR tap behind the DPF is clever be interesting to what the insides look like at 100k in terms of soot. Is it a Denso or Bosch fuel sys?

Grit dog

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Posted: 11/29/20 10:27am Link  |  Quote  |  Print  |  Notify Moderator

Bionic Man wrote:



You either have a REAL special vehicle, or your computer is way off and you would be better off hand calculating your mileage. Fuelly says


The only thing special is him.....and there’s one in every crowd! Lol


"Yes Sir, Oct 10 1888, Those poor school children froze to death in their tracks. They did not even find them until Spring. Especially hard hit were the ones who had to trek uphill to school both ways, with no shoes." -Bert A.

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