![]() GM should be held completely responsible for their actions and the product that caused all the damages. ![]() I'm very angry, and I know my father would have been very unhappy as well. I don't know if that's what's in store for me or not. Some people have had to replace their head gasket. The case needs to be reopened and offer a real solution to people who have incurred large outlays of cash. Apparently, I am far from the only one with this issue. As does the damage due to this noxious chemical 'coolant'. In 2008, GM offered a settlement for a class-action lawsuit pertaining to the aforementioned damage to affected vehicles. The truck overheats and I have to pull off and let it cool down before I continue to travel. Now once again after another 3 years I am running into the same issue. After another year or two the problem was back in full force. A mechanic then suggested I replace the radiator, which I did. That worked for a while, but the problems worsened. Finally, out of desperation, I took it to a mechanic. As time progressed, the problem continued to worsen, until the vehicle would severely overheat. From time to time, it would overheat, then apparently temporarily correct itself. In 2001, my father passed away and I inherited this vehicle. I have also used the same in my Toyota Tacoma and no issues. ![]() We also have a 2005 hyundai (original owner) and I have always used regular prestone with no issues. "Īnyways, do your own research but I will be using prestone cor-guard in our 2014 hyundai. Prestone® Antifreeze/Coolant is completely safe for use in both foreign and domestic vehicles. Therefore, the question of phosphates is a non-issue here in North America. Typical North American coolants have contained phosphates (which is part of the corrosion inhibitor package) for many years. However, in North America we do not have this type of water problem. If you were to mix an antifreeze that contained phosphates with the type of water they have in Europe, it may produce deposits that can settle in the cooling system and promote corrosion. This issue is related to the extremely high mineral content of the water in Europe. "Some European automobile manufacturers request that a phosphate-free antifreeze be used in their vehicles. and also this is from prestone website regarding Europen cars: Regarding any car, and model, any color antifreeze claim: and was told that it is ok to use the prestone.I OM says use ethylene glycol based coolant for aluminum radiator and I called another Hyundai parts department and the parts person put me on hold and asked one of the mechanics at the service dept. Īs and others have said here, it should be ok to use it in Hyundai. It also says to use in any car/model, or with any color antifreeze. It is the regular yellow container you see in most stores. I have prestone cor-guard and it says "extended life" on it as well. I also wouldn't hesitate using the silicated H-OAT, GO-5, after a good flush.ĭid some more research. These are similar to what came in his Hyundai originally. The A2 is original H-HOAT LL while the A3 is improved formula good for 'extended' long life. If the OP is intent on using a phosphated H-OAT he should check his local Autozone for the Pentosin that's on CLEARANCE.the A2 green and the A4 blue are both compatible.the A2 is a concentrate and the A3 is a pre-mix. I think any of these will work fine for the OP as long as he FLUSHES his system (with Distilled) water) until there is no trace of the original coolant.3X should do it. GO-5 is a H-OAT with a little silicate in it.Īlso, I believe that Prestone AMAM is an OAT coolant (very similar to their Dexcool without the license). Can't say I've ever heard of it being an issue anyway. Personally, I wish I could get a low silicate addition to either of these, but I have come up dry. Typically the Asian HOAT formulas use corrosion inhibitors that are different than european formulas.Īsian formulas use phosphates to protect against corrosion on ferrous parts and preventing cavitation.Įuropean formulas use silicates in small concentrations, which helps protect aluminum from high temperature corrosion (and can also help slow or stop a head gasket leak if one forms).Īsian formulas can be bought at the car dealer, but their suppliers in NA are generally Zerex, owned by Valvoline. If you bought Prestone Extended Life, then you can mix it, and it will be fine these are both HOAT fluids (their organic acids are the same, or at least have no resulting detriment to mixing.) Not all Prestone is the same! If you have the Dex-cool (OAT) prestone fluid, I would take it back, because Hyundai does not use OAT.
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