When it comes to mixing Dexcool and universal coolant, there’s no need to worry about the proportions or anything else-just shake them together before pouring them into the radiator. The last time I checked, my garage had over 10 gallons of unused antifreeze…enough for a small car at least!
DEXCOOL COOLANT FULL
If you’re like me, then your garage is full of things that are only used occasionally. GM prescribes any vehicle mixing Dexcool with green antifreeze be flushed more than once to guarantee all debased coolant has been completely removed.Regardless of whether you are running Dexcool or ethylene glycol, examine the coolant level and the condition of the coolant during each oil change or have your trusted mechanic make it a normal part of the inspection.GM suggests coolant exchangers as the correct strategy to trade the old Dexcool antifreeze in your vehicle with universal antifreeze.Try not to blend Dexcool with standard liquid catalyst! Dexcool is an exceptionally refined GM coolant that won’t blend in with universal antifreeze and was utilized in different GM applications up through the 2004 model year.I would not use Dexcool in a vehicle where it came with something besides Dexcool from the factory.Ī flush at PepBoys would likely get you a flush using tap water and universal coolant added. And change the coolant as listed in owners manual. And you have to make sure cooling system is air tight. There were issues with a few engines that needed some new design gaskets. Your article and the discussion of problems is very old news. Peak Global Lifetime is the same coolant minus that chemical. Https:/ / news04/ 2006/ 08/ gm_dexcool.htmlĭexcool contains an aggressive plasticizer chemical. GM has been having problems with Dexcool since they started using it in 1996. Lets say you keep cruising with Dexcool mysterious problems will happen like a leak in the radiator.a leak in the coolant reservoir.etc. Pepboys seems best equipped around here to perform these fluid flushes. The best thing you can do is get the "Dexcool" coolant flushed and replaced with Peak Global Lifetime.
Im in the livery ed to own a Suburban.know a lot of people with these vehicles.
The system is still clean all round with zero issues at 135,000 miles, which is stil less than half that of the Avalanche. I flushed out the factory coolant on the Envoy when I replaced the factory thermostat at 56,000 miles and again when I replaced the water pump at 115,000 miles. I no longer have the Avalanche, but I personally know the person who now has it with 293,000 miles now and he's got no issues with it either. thermostat or water pump, the system was thoroughly flushed and back flushed and refilled with premixed Dexcool. Whenever a cooling system repair was performed, e.g. The LM7 5.3L I had on an old Avalanche didn't cause me any grief, nether did the LL8 4.2L in my Envoy, both of which have been running Dexcool since they left the factory. I, personally, have never had a problem with Dexcool. Newer gasket material, primarily HNBR with aluminum frames addressed the problem, but until that point both GM and some aftermarket manufacturers were paying for warranty claims. The plastic would soften, swell and eventually leak. The root cause was air in the system, which caused acid to form when mixed with the coolant and attacked plastic carrier gaskets. By the early 2000s, manifold gasket failures on the 3.1L/3.4L as well as 4.3L, 5.0L and 5.7L using plastic carrier gaskets with moulded silicone was common. Back in '96, GM made the "mistake" of calling Dexcool a "lifetime" coolant.
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