I have a 2005 GMC Sierra Denali plus it claims to place Dex Cool, however, i hear which Dex Cool is truly bad, which type of Coolant/Antifreeze could i submit my truck which is Approved for my truck that’s not Dex cool?
Is Dex Cool truly which bad?
Answer by drpeppers
The right thing is to call the dealer cuz i don’t recognize eather , i don’t recognize why they keep changing it even so they do certain you are able to we employ plus certain we cant how inside the h— will you maintain with it.
Answer by Stpaulguy
The info you’re getting is based about incomplete info. Folks speak regarding 2 difficulties with DexCool:
1) it causes rust inside the engine
2) it destroys gaskets
In a cast iron block, should you permit DexCool to run low, it oxides plus causes a sludge buildup. It doesn’t do which about new aluminum machines. The sludge is ALWAYS caused by making the program receive actually low about coolant plus usually about cast iron.
The gasket condition had been a shape problem. GM utilized plastic about their consumption gaskets plus it proven incompatible with DexCool. The car isn’t affected by which problem.
But, should you nevertheless feel uncomfortable, you are able to employ G5 yellow coolant. That’s the many suitable with DexCool.
Answer by GM Customer Svc
Starting about page 5-24 of the owners manual, it does suggest Dex because the coolant of choice to employ. There is a detailed training guide of how much to employ, etc. Please consult a GM qualified tech for further information before utilizing another brand. I hope a week is going effectively.
GM Customer Service
I’m seeking to buy the 2003 Gmc Yukon Denali as well as the seller informs me the service air control light comes about. I only like to learn what which is,what it does as well as the cost for it to be fixed at a dealer.
Answer by Scott W
If its the back pump for the air leveling which are not inexpensive the pump expense 4-500.00 only for the pump not installed.