![]() ![]() Should You Mix Zerex G05 With Green Coolant? But the Zerex G 05 is the better solution for most modern cars. If it was made before 2000, green coolant is good for those older cars. The main thing you should consider before mixing the coolants is the car. It’s safe to stick to the 50-50 ratio if you plan on mixing these coolants. But doing that will make the maths harder of how much green coolant you should mix it with. You can also go higher when mixing the Zerex coolant with water. Not only can you mix it, but you’d also be certain that the ratio of coolant and water is the same in the mixture. So, if you dilute the Zerex G-05 coolant at a 50-50 ratio with water first, you can mix it with the green coolant. Most green coolants are prediluted at a 50-50 ratio. But the Zerex G 05 coolant isn’t prediluted. So, it’s safe to mix the prediluted coolants with other coolants. Zerex G 05 is a concentrated coolant/antifreeze that works well when mixed with water. ![]() The label doesn’t mention if you can mix it with coolants of other colors. Brands like Autozone, Peak, and Preston mention in their label that the coolant can be mixed with coolants of other colors.īut no such claim is made in the Zerex G 05 coolant. It’s okay to mix most antifreeze or coolants with each other as they outright claim that on the label. Both Zerex G 05 and green coolant are antifreeze that has one job – to cool down the engine when it gets too hot and to keep the engine at an operating temperature. If you mix the Zerex G 05 with green coolant without proper knowledge, it can be harmful to your car’s engine. Problems caused by use of non-approved "universal" coolant may not arise immediately, but may occur over longer periods of time due to additive compatibility issues.Thermo Ply Red vs Green Can You Mix Zerex G 05 With Green Coolant "Use of non-approved "universal" coolants may lead to eventual engine damage or failure. "Based on blind laboratory ASTM testing performed in duplicate, two leading "universal" coolants currently in the marketplace did not meet the extended D2809 requirements of Ford's Motorcraft Premium Gold Engine Coolant specification, WSS-M97B51-A1." Here's Ford's position on universal coolants: Until then, I will err on the cautious side based on the best info available (not anecdotal stories on BITOG, including mine). I, too, would like scientific results showing the results of mixing coolants. A remaining inhibitor (borate) could attack aluminum if the silicates are depleted." An example cited by one coolant chemist: A somewhat diluted mix, perhaps 50% to 60% water, with the remainder (from top-ups) a 50-50 combination of an OAT and a conventional American coolant or a G-05. However, there are possible problems with extreme mixtures. "Sure, for small top-ups or in an emergency situation, it doesn't matter-use what you have. Regarding your last statement, in this article, Paul Weissler gives one reason NOT TO MIX COOLANTS: Or, use a universal coolant that is approved for ALL applications. Replace same with same, if possible, using the same type of antifreeze that was in the system. ![]() "When adding or changing coolants, therefore, the best advice is to follow the recommendations of the vehicle manufacturer. Some argue this is not entirely true, but the stuff seem to work okay and is widely accepted in the aftermarket." "To reduce confusion, several antifreeze suppliers (Peak and Prestone) now sell a "universal" type of antifreeze that is compatible with all types of antifreeze and all makes and models of vehicles. " GM warns that intermixing extended life coolant with ordinary coolant reduces the coolant's life to that of the ordinary coolant." In this Larry Carley article, he reinforces these concepts: That article is aimed at service garages wanting to consolidate their inventory, not maximize cooling system life. He says it is ok to top off different coolants with UNIVERSAL coolant. I still have yet to hear a *reason* coolants can't mix.Īudi, that Larry Carley article does NOT recommend mixing different coolant chemistry. The "mixing" of coolants is the most overblown issue on this website and on others too.Įverything you need to know about coolants is here on this page: ![]()
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