Recent content by Yukiwari

Hyundai Recommends 65/35 is max to get and 50/50 low but i think this for korean climate in my climate water should be 70 at least

ill top up with distilled water as needed to avoid increasing glycol concentration over time. Seems like plenty for my hot climate

Excellent, I’ll do that instead of switching to VP in this case. I’ll just keep topping up with distilled water and maintain the 30/70 coolant/water mix.

My overflow tank has a vent, just like the small hole at the top under the cap, designed that way by Hyundai

Exactly, with a regular 50/50 mix, if lose water in 50/50 mixture just top it up with distilled water, and that keeps the mixture at 50/50 without increasing the glycol concentration over time. usually lost about 50–100 ml per month (roughly 1/4 quart)

Thanks, that’s a really clear and convincing explanation. I appreciate the way you broke it down — especially the point about 70/30 vs. 50/50 and the realistic comparison to VP Stay Frosty. Very helpful!

No overheating issue here — temps stay steady at 93°C (199°F). The problem is that after a year the mix creeps up to ~60% glycol, likely from water loss in our extreme heat. That’s why I’m leaning toward glycol-free VP Stay Frosty with yearly changes for better heat transfer.

Since VP Stay Frosty has corrosion inhibitor and the company recommends replacing it every two years (I change mine every year because of the climate and because a 50/50 coolant tends to shift to 60/40 after a year), using VP Stay Frosty now seems like a better option than regular coolant.

I see, thanks for clarifying! The high-performance purple version isn’t available in my country, so I only have access to the blue Stay Frosty. It seems like it might be great for cooling, but I’m curious about corrosion protection — do you think it offers enough, or is it minimal compared to...

That’s why I’m curious about VP Stay Frosty. Even a small drop in temps would be helpful in my situation. Do you know if it really provides enough corrosion protection, or is there little to none?

I’m currently using Prestone Max Asian 50/50 P-OAT. The issue is that after about a year it tends to shift closer to 60/40, and that’s my concern — the higher glycol concentration reduces heat transfer efficiency. That’s why I started looking into glycol-free options like VP Stay Frosty

I get that special coolants aren’t usually needed for regular cars. But I live in a very hot area (summer up to 48°C / 118°F) and drive on the highway twice a week. My Elantra MD runs steady at 93°C (199°F) and can go up to 95°C (203°F) under load. Even a small drop in engine head temperature...

Hello everyone, I’m considering using VP STAY FROSTY radiator water in a regular car, specifically my Hyundai Elantra MD. I live in a hot subtropical climate, with summer temperatures reaching around 48°C (118°F) and winter temperatures between 5–8°C (41–46°F), so freezing isn’t a concern. I...

No, I used to use SP-IV fluid, then Motul ATF VI, and later AMSOIL Signature Series ATL. I found RedLine D6 to have the best performance among them

ع each 40,000km (25,000mile) due severe conditions