Cold climate fluids?

[D6Diesel]

trying to help a friend get his 2002 Yukon (sorry to mention it) winterized. He's in North Dakota. What product would be suitable for the transfer case and rear differential?

 

[JJW_ND]

ND get cold....Not really!

99. 9% of most all GM vehicle (or any vehicle) are ran year round with the fluids the factory puts in. Factory fluids will work fine in ND. There is better but it is not required.



Make sure your friend has a good battery and his coolant is protected to - 40. I would worry more with these then TCase and Tramission fluid.



It really does not get the cold here. We just advertise that it does to keep our wide open spaces and riff raff out.



jjw

 

[D6Diesel]

Right, thanks for the comment. I found that the transfer case will only accept "Auto Trak fluid". The rear diff likely already has synthetic fluid. Thanks again.