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Black02Silverado Senior Enthusiast

Black02Silverado

Posted
Posted
1 hour ago, customboss said:

So the Dexron HP was initially designed as a PAO GRP IV based fluid in 2013.

 

Then when to GRP III in 2017. 

 

In 2019 GM contracted with XOM to use a GTL base that is GRP III+.  Probably a Shell GTL fluid.  See attached. 

 

I think I would replace with Amsoil or others that are GRP IV or above bases that is compatible with this fluid instead of using a lower quality but " approved " fluid.  

 

The marketing BS is irritating as crap for my chemistry mind!  

 

 

https://www.gm-trucks.com/forums/profile/4829-black02silverado/  what do you recommend from Amsoil as a replacement for those of us that want best performance?  

 

 

 

 

Screen Shot 2022-01-07 at 11.54.37.png

I've been running AMSOIL's transmission fluid in all my GM vehicles from pretty much day one.  My 2002 Silverado with the 4l60E was on dexron III for the first 60k miles until GM came out stating that dexron VI was backward compatible and then I switched it over to AMSOIL's ATL fluid, which meets/exceeds the dexron VI, HP and ULV fluids.  Had 200k on the 4l60E before I sold it and towed occasionally a 4Klb trailer.   Our 6l80E in our Suburban, at least I think it is a 6L80E is running AMSOIL's ATL as well as now my 2019 Silverado with the 10sp.  All are shifting great, no issues.  To me, having a quality fluid is key.  GM uses Mobil for reasons I don't know but would bet would be for the least expensive of the alternatives out there. 

 

AMSOIL does serious R&D on all their fluids before they recommend use in an application.  Hours upon hours of in house testing. 

 

To add, my daughters 2012 Cruze and my 2104 Cruze diesel, totally different transmission than my daughters have been running AMSOIL fluid again as soon as I could get it in.  Keep in mine, my 2014 Cruze diesel transmission runs at 220°F according to the Scan Gauge II I use to keep track of that temp and my regens.  A friend changed his 2012 Cruze over to AMSOIL and before he had to sell it from an accident,  it has 180k on it.

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ShamrockShooter
ShamrockShooter

Well. Gals and Gents this topic was started for people who want to like or appreciate a new innovation. It will be a lot more fun to keep the negatives for another forum topic.   Yes it's a new engi

InertiaFaze
InertiaFaze

My latest 2.7T fuel economy numbers.....   400 mile AVG 29.1 mpg life of vehicle (11111.1 miles) 22.7 mpg

i82much
i82much

now they just need to make a turbo 6.2!

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Grumpy Bear Senior Enthusiast

Grumpy Bear

Posted
Posted
On 12/16/2021 at 5:35 PM, customboss said:

First oil analysis :   Fuels dilution ( target 0.5% or less)   elevated otherwise normal for OEM lubricant at 592 miles. 

 

Oil was changed with QS Full Syn 5w30 Dexos1 gen 2 and PF 66 oil filter. 

 

 

What's your plan for the second change? Miles? Fluids or filter changes? 

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customboss Senior Enthusiast

customboss

Posted
Posted
3 hours ago, Grumpy Bear said:

 

What's your plan for the second change? Miles? Fluids or filter changes? 

Will use oil analysis and 2 free oil changes from GM and Dealer to guide before I decide on a chemistry for this to date mostly unknown design via oil analysis.

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Jaolered Enthusiast

Jaolered

Posted
Posted (edited)

Random mpg check-in. 27.0 average mpg over 200 mile trip in pouring rain. Crew Cab 4x4. Average speed about 65 mph. Pretty impressed by this 2.7.

20220109_180808.jpg

Edited by Jonathan Akers
  • Like 2
lwmajor New Member

lwmajor

Posted
Posted
3 hours ago, Jonathan Akers said:

Random mpg check-in. 27.0 average mpg over 200 mile trip in pouring rain. Crew Cab 4x4. Average speed about 65 mph. Pretty impressed by this 2.7.

20220109_180808.jpg

I see you have 26k miles , any issues so far ?

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Jaolered Enthusiast

Jaolered

Posted
Posted
12 hours ago, lwmajor said:

I see you have 26k miles , any issues so far ?

It's been flawless so far. The only "issue" I have is that sometimes it makes a sharp squeak noise when I accelerate or when the vehicle turns off. It's sounds like my exhaust hanger might be rubbing, but I need to get it checked.

 

Mechanically the 2.7 has been great.

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Jaolered Enthusiast

Jaolered

Posted
Posted
On 1/7/2022 at 11:42 AM, F-150stxguy said:

I think I’m going to order a 2.7 come may or June in a single cab 2wd. It should get solid mpg and have some fun to it too. One thing is though, I’ll be pissed if they introduce the 10 speed combo next year. Maybe I should hold off one more year? 
 

 

Any long term owners here? How are you liking it ? 

If you can wait, the 2022 refreshed engine has 430 lb ft of torque and updated shifting logic for the 8 speed. I'm *fairly* confident that GM will push the transmission update to the 2019-2021 models but the engine upgrade is pretty huge. A single cab 2wd won't have any problems with 348 lb ft of torque though, to be honest.

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f8l vnm Senior Enthusiast

f8l vnm

Posted
Posted
1 minute ago, Jonathan Akers said:

 A single cab 2wd won't have any problems with 348 lb ft of torque though, to be honest.

Especially when all that Torque is down low. 

  • Like 2
customboss Senior Enthusiast

customboss

Posted
Posted
9 minutes ago, Jonathan Akers said:

It's been flawless so far. The only "issue" I have is that sometimes it makes a sharp squeak noise when I accelerate or when the vehicle turns off. It's sounds like my exhaust hanger might be rubbing, but I need to get it checked.

 

Mechanically the 2.7 has been great.

Jonathan, 

Sounds like a serpentine belt pully may be defective.  Mine is absolutely quiet.

 

Only noises I can hear if I have hearing aids in,  are the coolant system wooshing coolant fluid around electrically on shut down, and noisy hydraulics BIT tests of ABS system also on shut down.  On door unlock or key on,  I think I can hear the fuel pump charging or at least some big relays moving. 

 

In your pic is that Army dress blue?  If so what MOS and units?  Ex USN and Army here. 

 

 

 

 

 

 

 

 

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Jaolered Enthusiast

Jaolered

Posted
Posted
1 hour ago, customboss said:

Jonathan, 

Sounds like a serpentine belt pully may be defective.  Mine is absolutely quiet.

 

Only noises I can hear if I have hearing aids in,  are the coolant system wooshing coolant fluid around electrically on shut down, and noisy hydraulics BIT tests of ABS system also on shut down.  On door unlock or key on,  I think I can hear the fuel pump charging or at least some big relays moving. 

 

In your pic is that Army dress blue?  If so what MOS and units?  Ex USN and Army here. 

 

 

 

 

 

 

 

 

It is. 90A, Logistics Officer. I'm a Company CDR in 3ID right now. Thanks for your service brother.

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customboss Senior Enthusiast

customboss

Posted
Posted
7 minutes ago, Jaolered said:

It is. 90A, Logistics Officer. I'm a Company CDR in 3ID right now. Thanks for your service brother.

Back at ya Captain or Major!  Proud of you!   I flew out of Hunter AAF back in the day. Supported JSOC and fielding Kiowa Warrior in late 80's.  CW2 Scout Pilot outta Bragg back in the 80's. 

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F-150stxguy Enthusiast

F-150stxguy

Posted
Posted (edited)
On 1/10/2022 at 10:37 AM, Jaolered said:

If you can wait, the 2022 refreshed engine has 430 lb ft of torque and updated shifting logic for the 8 speed. I'm *fairly* confident that GM will push the transmission update to the 2019-2021 models but the engine upgrade is pretty huge. A single cab 2wd won't have any problems with 348 lb ft of torque though, to be honest.


Absolutely. Is the 2022 model not yet available for GM? I’m used to Ford’s model year scheduling, so I’m not sure if GM does it differently. 
 

When I try to build the 2022 Chevrolet, it doesn’t let me option the regular cab with the standard bed (only long bed), and I was under the impression that for the 2022 model year, they were bringing back the standard bed for regular cab. 
 

For sure, in addition to the regular bed, I would love the increase in torque from the HO. And since I’m getting possibly the lightest version of truck, that thing will move with authority but also give me great mpg on my long 55mph commutes. I bet I can see 26-28 consistently if I set cruise. 

Edited by F-150stxguy
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Jaolered Enthusiast

Jaolered

Posted
Posted
On 1/12/2022 at 12:51 PM, F-150stxguy said:


Absolutely. Is the 2022 model not yet available for GM? I’m used to Ford’s model year scheduling, so I’m not sure if GM does it differently. 
 

When I try to build the 2022 Chevrolet, it doesn’t let me option the regular cab with the standard bed (only long bed), and I was under the impression that for the 2022 model year, they were bringing back the standard bed for regular cab. 
 

For sure, in addition to the regular bed, I would love the increase in torque from the HO. And since I’m getting possibly the lightest version of truck, that thing will move with authority but also give me great mpg on my long 55mph commutes. I bet I can see 26-28 consistently if I set cruise. 

They had to release a "2022 limited" version because of shortages and delays, so the true 2022 "refreshed" trucks won't be available until Spring or so. It's an abnormal year for sure

  • Like 2
newdude Senior Enthusiast

newdude

Posted
Posted
On 1/12/2022 at 12:51 PM, F-150stxguy said:


Absolutely. Is the 2022 model not yet available for GM? I’m used to Ford’s model year scheduling, so I’m not sure if GM does it differently. 
 

When I try to build the 2022 Chevrolet, it doesn’t let me option the regular cab with the standard bed (only long bed), and I was under the impression that for the 2022 model year, they were bringing back the standard bed for regular cab. 
 

For sure, in addition to the regular bed, I would love the increase in torque from the HO. And since I’m getting possibly the lightest version of truck, that thing will move with authority but also give me great mpg on my long 55mph commutes. I bet I can see 26-28 consistently if I set cruise. 

 

 

Yea GM has there transitionals kinda strange.  Most everyone just makes their refresh or new model become a new model year, GM likes to split it up like they've always done.  

 

Give it another month or month and a half you should see the build and price pop up and the reg standard bed will pop up.  

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newdude Senior Enthusiast

newdude

Posted
Posted
On 1/7/2022 at 1:01 PM, Black02Silverado said:

What I don't understand is GM specifically stated when they introduced the new 2019 model that the 8sp was a new updated design as well, but here we are in 22 and there are still issues with it.  Now the 10sp is a rock solid setup. 

 

 

They did make a couple changes, mainly the biggest being the updated torque converter.  The 19+up 8 speeds have a CPVA or Centrifugal Pendulum Vibration Absorber torque converter that initially debuted in the 6L50 behind the 2.8 Duramax for 2016+ Colorado/Canyon.  

 

Chevrolet Introduces Colorado Duramax Diesel (gm.com)

 

Quote

 

Controlling noise and vibration with the CPVA
To control vibration and noise inside Colorado, engineers integrated a device called the Centrifugal Pendulum Vibration Absorber (CPVA) in the torque converter used with the standard Hydra-Matic 6L50 six-speed automatic transmission. It marks the first application of a CPVA in a GM vehicle and the first time it has been used in the midsize truck segment.

 

The CPVA is an absorbing damper with a set of secondary spring masses, that — when energized — cancels out the engine’s torsional vibrations so the driver and passengers can’t feel them. In its unique design, the spring masses vibrate in the opposite direction of the torsional vibrations of the engine, balancing out undesirable torsional vibrations.

 

 

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