Coolant gurus, I need your help! I just purchased a newer Elantra (in sig). This car is in pristine condition, and I intend to keep it that way. I don't know any history, but both of my cheap coolant testers (which have always been pretty accurate) said it is mixed VERY strong (like -60° strong). They both read correct on my SS which I know is perfectly 50/50. So I'm assuming there's very little water in it. The current coolant appears to be old school green coolant. Hyundai is extremely vague in the owners manual, but I get the impression anything is safe, including old school green Prestone, because their terminology is something along the lines of "ethylene glycol based coolant." I will probably take it to a real radiator shop to do a true (high pressure) flush to blast any junk out of the system.
But my question is what do I refill it with?
I've done some research and can't decide between Zerex Asian Blue (only 50/50), old school Prestone green, or my outlier Zerex G-05. I hate companies that label a coolant completely universal (Peak Global) and I tend to avoid those.
I think my front runner is Zerex Asian Blue (is there any difference from red?) simply because of the longer service life and it saying suited for Hyundai right on the bottle. Prestone green is a close second due to it being cheaper and full strength to mix properly. I have some Zerex G-05 that will go to waste due to selling my Marquis though, and I believe that's safe too.
***Ultimately, I want what is BEST for the car, not my wallet or other factors, within reason*** (that being said, what is Hyundai genuine coolant? I can't find a clear answer. Within reason means if Hyundai's is basic green and twice the price, I'll opt for the cheaper Prestone)
Am I overthinking this? Am I missing something? Please chime in. Be critical (about anything I've said). Any input is valuable. Thanks in advance!
But my question is what do I refill it with?
I've done some research and can't decide between Zerex Asian Blue (only 50/50), old school Prestone green, or my outlier Zerex G-05. I hate companies that label a coolant completely universal (Peak Global) and I tend to avoid those.
I think my front runner is Zerex Asian Blue (is there any difference from red?) simply because of the longer service life and it saying suited for Hyundai right on the bottle. Prestone green is a close second due to it being cheaper and full strength to mix properly. I have some Zerex G-05 that will go to waste due to selling my Marquis though, and I believe that's safe too.
***Ultimately, I want what is BEST for the car, not my wallet or other factors, within reason*** (that being said, what is Hyundai genuine coolant? I can't find a clear answer. Within reason means if Hyundai's is basic green and twice the price, I'll opt for the cheaper Prestone)
Am I overthinking this? Am I missing something? Please chime in. Be critical (about anything I've said). Any input is valuable. Thanks in advance!