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Transfer Case Oil

JeffK

By JeffK
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JeffK New Member

JeffK

Posted
Posted

I hope someone can set me straight as I just bought a 2015 Silverado 1500 Z71 and when checking the fluids I noticed the transfer case had gear oil in it.  with 150k I know it is due for a change but wanted some opinions on what to use I can see GM 88861950 is a transfer case oil but the manual calls for Dextron VI.  thanks for the guidance lost in Indiana.  

16LT4 Enthusiast

16LT4

Posted
Posted (edited)

1) how are you sure the transfer case has gear oil in it?

 

2) even if only 30k miles, it's due for a change.  Change it pronto.

 

3) it takes Dex 6.

Edited by dukedkt442
jay webb Enthusiast

jay webb

Posted
Posted
1 hour ago, JeffK said:

I hope someone can set me straight as I just bought a 2015 Silverado 1500 Z71 and when checking the fluids I noticed the transfer case had gear oil in it.  with 150k I know it is due for a change but wanted some opinions on what to use I can see GM 88861950 is a transfer case oil but the manual calls for Dextron VI.  thanks for the guidance lost in Indiana.  

transfer case fluid should be dexron vi. 

 

front diff and rear diff are gear oil. 

 

transfer case is going to behind the trans right before the shaft. 

JeffK New Member

JeffK

Posted
  • Author
Posted

Thanks transfer case definitely has gear oil in it can smell it a mile away when I checked fluids.  I assume I can just drain and refill with the Dexron VI? 

txab Senior Enthusiast

txab

Posted
Posted
54 minutes ago, JeffK said:

Thanks transfer case definitely has gear oil in it can smell it a mile away when I checked fluids.  I assume I can just drain and refill with the Dexron VI? 

If you're going that route, you'll need to do it a couple of times at least to make sure you flush the gear oil out, imo

  • Like 3
CombsL83 Enthusiast

CombsL83

Posted
Posted
22 hours ago, JeffK said:

I got a good deal mostly highway miles runs like new I have a 05 with 240+ on it.

I’ve never seen a car advertised as having mostly city miles. Just saying. I assume every car I buy has had the piss beat out of it by the last person to own it. I never upgrade to a vehicle with more than 36,000 miles or higher than 10,000 miles a year.

  • 4 years later...
ajachevy New Member

ajachevy

Posted
Posted
On 8/18/2019 at 5:47 PM, CombsL83 said:

I’ve never seen a car advertised as having mostly city miles. Just saying. I assume every car I buy has had the piss beat out of it by the last person to own it. I never upgrade to a vehicle with more than 36,000 miles or higher than 10,000 miles a year.

wow we are the 1/4 million mile club at my house. 10 trucks and the only one with under 200,000 is my 1986 square body. i have a 07 Tahoe with 283,000 and nothing more than regular maintenance on that.

I put allmosts 10,000 miles on in a year just going to work.

  • Like 1
  • 5 months later...
dna9656 Enthusiast

dna9656

Posted
Posted
On 8/18/2019 at 3:47 PM, CombsL83 said:

I’ve never seen a car advertised as having mostly city miles. Just saying. I assume every car I buy has had the piss beat out of it by the last person to own it. I never upgrade to a vehicle with more than 36,000 miles or higher than 10,000 miles a year.

You must have a hard time finding used vehicles to buy huh?

txab Senior Enthusiast

txab

Posted
Posted
4 hours ago, Black02Silverado said:

@JeffK, I wonder how things turned out?

Me too. He hasn't been back since March of 2020

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