GM still uses Dex-Cool coolant and there is no longer a problem with gasket coolant interaction. So contrary to the ranting, DexCool IS the recommended coolant for GM engine

When did GM stop using Dex cool?
The suits stem from GM's use of Dex-Cool, a coolant it first introduced in its vehicles in 1995 and sold in more than 35 million cars and trucks between 1995 and 2004. Dec 29, 2014
Do GM vehicles require Dex cool?
Dex-Cool (the orange fluid) is a type of coolant not a brand name. Yes, you have to use dex-cool in a system that requires it (most GM vehicles). However, different manufacturers make Dex-Cool fluid. Prestone is one of them.
Is Dexcool still a problem?
Ten years after General Motors began using Dex-Cool as an antifreeze in most of its cars and light trucks, GM car and truck owners continue to complain that the coolant corrodes and clogs radiators and radiator caps, erodes water pumps, rots radiator hoses, causes chronic overheating and engine damage while leading to ... Aug 29, 2006
Why does GM use Dexcool?
What exactly is Dexcool? In the 1990s, GM introduced an engine coolant called Dexcool. ... Cooling systems that use Dexcool exhibit more acid buildup and rust in the system when the coolant level gets low and oxygen is allowed to enter the system. The acid eats away at head gaskets and intake gaskets. Mar 6, 2020
Can you put water in a Dex Cool system?
it will be fine. I don't like using hose water for this. There are minerals and other junk in tap water that isn't good for your cooling system. Distilled water is the best bet, and it's not expensive at all. Apr 30, 2009
Is Dex cool better than antifreeze?
Dex-Cool uses a combination of organic acids as its corrosion inhibitors (OAT – Organic Acid Technology). GM believes that it provides better corrosion protection than regular green coolant for cooling system composed of different metals (primarily iron, aluminum, and brass), and provides a longer 5-year service life. Jan 11, 2015
What coolant does Chevy use?
Dex-Cool Dex-Cool is the antifreeze recommended by General Motors, the company that makes Chevys, as the best antifreeze for their automobiles. It is an orange color, to truly differentiate it, and is an extended-life coolant, known to work up to 100,000 miles.
Can I use universal coolant instead of Dexcool?
The formula of pretty much all "Universal" or "All makes all models" coolant is very similar to Dexcool so it would be just fine. Apr 20, 2019
Can Dexcool be mixed with regular antifreeze?
Firstly, Dex-Cool and traditional anti-freeze don't mix well. Though they can work together in a pinch, after extended use, they can react and create a gel, which can be very damaging to multiple components of your cooling system. For that reason, the best thing for your Chevy or GM vehicle is to stick with Dex-Cool. Nov 6, 2017
How often should Dexcool be changed?
Dexcool is designed to last 100,000 miles, but you should have it checked every season to make sure the PH/alkalinity is within tolerance as is the boil/freeze points. May 17, 2007
What happens if you use the wrong color antifreeze?
Mixing different engine coolants or using the wrong coolant can impair the performance of the special additive packages; this can result in increased corrosion to the radiator. ... Using the wrong engine coolant can gradually lead to corrosion and damage to the water pump, radiator, radiator hoses and cylinder gasket.
What causes Dexcool sludge?
Dex-Cool sludge is caused by oxidation A faulty radiator cap, coolant additives and stop leak products, mixing a different coolant into Dex-Cool, running low on coolant or using Dex-Cool in an engine not approved for its use can all cause oxidation and corrosion that forms as a sludge. Oct 26, 2017
What color is GM Dexcool?
green What color is Dex-Cool®?” It's true, coolant liquid comes in different colors, most commonly green (orange for Dex-Cool®). Each color is a unique formula that should not be mixed.
What year did Chevy start using Dexcool?
1995 Back in 1995, GM began to use “Dex-Cool” coolant in its vehicles; in fact, you may very well be driving a vehicle that uses Dex-Cool.
Can I use Dex cool in my Dodge?
Lift the hood of a Chrysler product and you'll see orange coolant in the jug and a "special engine coolant only" warning on the cap. ... Yes to both questions, but Chrysler Group says don't use DexCool in its products.
Can I use water instead of coolant in an emergency?
Yes, you could use water as a coolant in an emergency. However, doing so is not recommended since water won't work well beyond its freezing and boiling points. This could also cause expensive engine damage.
Do you have to dilute DexCool?
You must mix it with water to get the a lower freezing point (this is a eutetic mixture). Also, ethlyene glycol does not absorb heat as well as water, so if your cooling system is marginal, it can overheat. Jan 14, 2002
What happens if you add water to 50/50 coolant?
When mixed in equal parts with water (50/50), antifreeze lowers the freezing point to -35 degrees F and raises the boiling temperature to 223 degrees F. Antifreeze also includes corrosion inhibitors to protect the engine and cooling system against rust and corrosion.
What happens if you dont use Dex cool?
If the DEXCOOL is not completely removed from the cooling system, harmful interaction between coolants can cause major issues. Mixing DEXCOOL with standard/regular antifreeze often causes a jelling of the cooling system which causes a loser of cooling capacity which leads to major over heating.
Is Dex Cool toxic to pets?
Antifreeze facts Antifreeze is the yellow-green liquid that is poured into radiators and circulates through engines to keep them operating at safe temperatures. Conventional antifreeze contains ethylene glycol, which is very poisonous to people and animals.
Does Walmart sell Dex cool?
Prestone DEX-COOL Antifreeze+Coolant; Extended Life -1 Gal- Ready to Use, 50/50 - Walmart.com - Walmart.com.
Can I mix pink and blue coolant?
Most of us are familiar with two kinds of antifreeze. There is green antifreeze and orange antifreeze. ... These days you can actually get yellow antifreeze, blue antifreeze, pink antifreeze and more. The fact is, mixing these liquids is not safe. Jul 14, 2020
Is it OK to put straight antifreeze in your car?
Using pure antifreeze inside your vehicle's cooling system causes that system to lose about 35 percent of its ability to transfer heat versus a proper mixture of antifreeze and water. ... For this reason, you should not run your vehicle on pure antifreeze. Apr 25, 2018
Can you mix Dexcool 50/50 antifreeze?
AFAIK, all antifreeze solutions can be mixed (same chemical class). The resulting mixture will not harm the cooling system. Apr 5, 2013
What kind of coolant is Dexcool?
DEX-COOL is a specific type of antifreeze, found in select brands of coolants, created using organic acid technology. The manufacturers as well as General Motors have claimed that DEX-COOL can extend the service life and function of your vehicle.
Does coolant really need to be changed?
A typical mechanic will recommend changing coolant every 30,000 miles. But many will tell you, changing the coolant is not even on their radar. An owner's manual might recommend changing the coolant/antifreeze after the first 60,000 miles, then every 30,000 miles. Dec 6, 2017
What happens if you dont flush coolant?
Over time, your radiator coolant can cause radiator corrosion, generating rust, scaling or other debris that you do not want in your car's radiator or engine. ... If you flush the radiator but ignore any leaks, your engine is likely to overheat again shortly after the flush. Jun 15, 2019
How do you know when to change coolant?
Here are some common tell tale signs that you may be in need of a coolant change. #1 Low Coolant Level. ... #2 Changes In Coolant Colors. ... #3 A Sweet Smell Is Coming From Your Engine. ... #4 The Heating System Isn't Working. ... #5 Your Car Is Overheating. Aug 23, 2018
Is it OK to mix coolant brands?
Combining two different types of antifreeze will lessen its corrosive properties. It is easy to flush out the engine coolant in the car's cooling system, and antifreeze is inexpensive. So it is better to refill the system with a new one rather than combining two different types of antifreeze. Oct 16, 2020
Does it matter what color antifreeze you use?
The truth is, color is not a reliable predictor for what type of coolant you have. For example, OAT coolants are usually orange, yellow, red or purple. HOAT coolants are orange and yellow for the most part. Then the older IAT coolant is green. Sep 4, 2018
Can you mix pink and green antifreeze?
You can mix two different colors of the same kind of coolant without any problem whatsoever. Aug 1, 2000
How do you flush out Dexcool?
2:11 6:39 Suggested clip 111 seconds DIY Coolant Super Flush - Getting Rid of DexCool and Going Green ... YouTube Start of suggested clip End of suggested clip
How do you clean Dexcool sludge?
I've had good luck flushing dex sludge from heater cores using vinegar. I generally flush most of the crap out and then soak the core with 100% vinegar for a few hours/over night and then flush with water some more. I repeat until it runs fairly clean. Jul 31, 2018
How do you dispose of Dexcool?
Seriously, try your local transfer station or recycle facility. Usually they can take all of that stuff. Aug 17, 2015
Does DexCool turn pink?
Current: Dex cool turns pink when you mix it with distilled water. May 27, 2020
Is Mopar antifreeze Dexcool?
Yep, Mopar is in fact ZEREX G-05 with a different color dye. Mar 10, 2006
Is Prestone antifreeze Hoat?
It's HOAT antifreeze and will mix with OEM coolant. The only place I know of that carries HOAT antifreeze in cream or red colors) is the NAPA. You can get the Zerex Anti-Freeze (beige color bottle with red coolant) from NAPA. Aug 6, 2009
What is equivalent to Mopar antifreeze?
zerex go5 or ford gold is all the same, the mopar stuff is dyed red and the zerex is a gold/neutral color so that it will blend in. Use only HOAT antifreeze, dont mix the green stuff in and dont use the antifreeze that says all makes/models, becasue it is not hoat compatable. Nov 5, 2010
How long can you run an engine without coolant?
From cold it can run probably 5 minutes. If you get a laser thermometer, you can watch it heat up. Apr 18, 2015
Can I put water in the coolant?
In general, using water as coolant is OK for a short time or as a "get you home" alternative, but it does not have the anti-freeze and corrosion inhibiting properties of a proper coolant mix, so should not be left in the engine for any length of time, especially if you live in a cold climate.
Can I pour water on my engine to cool it down?
Do not pour cold water into a still-hot radiator — it could cause the engine block to crack due to the sudden change in temperature. ... Note that most cars require a 50/50 mix of coolant with water to prevent overheating, so you won't be able to drive indefinitely with nothing but water. May 21, 2018
What coolant is compatible with Motorcraft orange?
PRESTONE DEXCOOL PRESTONE DEXCOOL® (50/50) Bottom line is Prestone DexCool® is a safe and readily available alternative to Motorcraft. Other alternatives are certainly available (e.g., Zerex, Peak, etc.) Sep 20, 2018
What is the difference between green and orange antifreeze?
What's the difference between green and orange coolant? Both orange and green antifreeze serve as engine coolants, designed to keep it from freezing or overheating. They also defend the cooling system against corrosion. ... Green is formulated for the former, and orange, the latter. Jan 21, 2021
Is putting water in coolant bad?
While you can drive the car for a short time using water in place of the coolant, it won't effectively protect your engine. This means its essential to get the problem that caused a low coolant level fixed as soon as possible, and the radiator filled with a 50/50 ratio of coolant to water. Jul 16, 2019
What happens if you don't use distilled water in radiator?
As it chemically removes electrons from the metals of cooling system components, distilled water eventually does extreme damage that could lead to cooling system failure. Apr 26, 2018
What happens if you use 100 percent antifreeze?
Pure antifreeze-coolant isn't nearly as efficient at getting the heat out of the engine as is antifreeze-coolant and water. Running on pure antifreeze-coolant is pure folly and only will hasten your engine's demise. Mar 2, 1989
Is Dexcool green?
Vehicle engines require coolants to keep them from overheating. In the past, there was only one kind of coolant (anti-freeze) and that was the green liquid. Today, there are two: The green coolant and the orange colored coolant, which is also known as Dexcool. Oct 10, 2013