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![]() The coolant reduces wear and tear, corrosion thereby checking the damage to the engine block. It plays an important role in making sure that your car’s engine cooling system is working well. Luckily I was able to get a good heater core and pipes from a donor vehicle which had only ever used Toyota Red.Coolant is one of the most critical automotive fluids. I forgot to add in my post #4 above that besides the fine silt in the cooling passages, also the solder for the heater core pipes had cracked and was beginning to fail, from the DPO who had used "universal green" coolant in it for several years. Other coolants might be good enough to use, or might not, and the issues they cause will take many miles until they cause you trouble, leading to the ease with which people using them can say, "it doesn't cause me any issues". Pink - meant for Gen5~ which are all aluminum and so the additives are different and as a result those vehicles can use a longer replacement cycle (100k miles). Those additives get used up so it should be replaced in 30k~50k mile cycles. Red - meant for Gen3/4 which used either an iron block, or had copper / brass plumbing in the heater system, and need the special additives in it for protection of those things. I heard you can stil lget the 50 / 50 but not around here. iIt used to come as a 50 / 50 mix but now its only a concentrate. its not that expensive though considering the red lasts many years. you can sometimes grab the aftermarket Zerex stuff off the shelf, but around here its impossible to find that as well so a special trip to the dealer is needed. The only issue is that you can't get the Toyota red anywhere like Walmart etc. ![]() Mix that as a 50 / 50 mix with distilled water and youll have an excellent cooling system.I even use the Toyota red in my older GMs. Id personally throw the toyota red back in since its some of the best stuff you can get for these cars. the whole IAT vs OAT vs HOAT coolant comes into play as the wrong one ca eat away at gaskets / seals etc.īest bet is to ask the guy what he used and if its compatible with your car. As long as it's the correct type of coolant its fine. If its Yellow, its probably Prestone.the best stuff is however the Toyota red. Your car takes toyota red or an equivalent. Since your shop put "yellow" in, there's no way of knowing if its appropriate or not without doing some research: find out the brand and type, and compare what their website says is in it to what the Zerex Asian Red says it has in it. Although that coolant had only been in for about 5 years, when I stripped the engine down I found a thin layer of very fine sand throughout the coolant passages, silicates which had already condensed out of the incorrect coolant that was used.Ĭoolant from the dealer is very reasonably priced, and equivalent Zerex Asian Red is available at all auto parts stores, so there really isn't much excuse for using incorrect coolant. I bought a used Gen3 Camry with old fashioned Prestone green in it. If the wrong coolant is used it may take years for it to become an issue. ![]() Modern Toyotas uses "Toyota Pink", Super Long Life Coolant, good for 50k~100k miles, but it is only used in systems designed for it (if used in a Gen3/4 can cause leaks because it can attack the FIPG sealer - as a result Toyota now supplies new water pumps and so on, for those old generation engines, with physical gaskets to avoid that risk). ![]() It needs to be flushed periodically, but not as often as the old green did. That type must be flushed every other year to keep up with the additives which are constantly consumed by doing their job.Ī Gen3 or 4 Camry uses the "Toyota Red", Long Life Coolant, which eliminates certain additives which can collect in the cooling passages, especially the silicates. The 'old school' green stuff had phosphates and silicates and other things to prevent rust of the iron block and reaction with the copper/brass radiator tubes and so on. The issue with using the wrong coolant in an engine is if the additives in it are wrong for that engine and cooling system materials.
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