#Dexcool coolant free#

Low-quality coolants can lead to cooling-system corrosion. Some radiators do not heat up to the required temperature, even when the temperature is turned up.Ĭorrosion – occurs when an imbalanced coolant chemically reacts with metallic surfaces, forming reddish deposits that can appear as sludge or slime.Pipework to the radiators get hot, but the radiators themselves do not.Radiators require bleeding more frequently.Radiators are hot at the top, but cold at the bottom.How do I know if I have sludge in my radiators? it could also get inside your engine and mix with your oil from gaskets or alumiunm parts being eatin away from the dex cool. If your using Dex Cool antifreeze, its eating away at your engines gaskets and cooling system components. It is GM certified as a DEX Cool replacement and can be mixed with Dex Cool (don’t mix it outright, drain it, just that what does not drain out it’s ok when it intermixes). Either 50/50 or cut it yourself with distilled. Then flush the system again and put in new coolant and the cooling system should be clean with no more brown debris or corrosion. The brown stuff coming from the radiator is the corrosion and deposits that is built up in the cooling system. If coolant is left to deteriorate, it can take its toll on your vehicle’s cooling system. If it’s in really bad shape, it will be a sludgy brown. When it’s past its prime, it will become a brownish color and more opaque. unexplained coolant loss with no leaks.BUBBLING IN THE RADIATOR AND COOLANT RESERVOIR.For that reason, the best thing for your Chevy or GM vehicle is to stick with Dex-Cool.

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. Can you change from Dexcool to regular antifreeze?įirstly, Dex-Cool and traditional anti-freeze don’t mix well. Thanks to its unique and patented formula, Prestone Coolant/Antifreeze remains the only coolant on the market that can be mixed with another product within the cooling system without causing damage. Prestone’s Coolant/Antifreeze is guaranteed to be compatible with all cars, vans or light trucks.

#Dexcool coolant free#

Your radiator should now be free from sludge.

Fill the system with coolant and check for any leaks. Create a mixture of 50% water and 50% antifreeze. How do I fix brown sludge in my radiator?įill the cooling system with antifreeze. Rust builds up in the system, inhibiting coolant flow, which causes overheating. The acid eats away at head gaskets and intake gaskets. Why is Dex-Cool bad?Ĭooling 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. Modern engines like coolant mixtures which contain various additives that prevent rust and corrosion, also lower the boiling point so that the engine can run hotter. The brown is due to rusting in the engine cooling system, not good. Usually, it means that you have plain water in your cooling system. 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.