Discussion: Let's talk coolant

IDZRVIT

For starters, straight water in a cooling system, is not the best coolant for those who think this way.

The cooling system is designed to meet a certain specification. Let's say it's cruising at 70 mph, A/C on, ambient outside temp 120 F for 6 hours with a standard 50/50 coolant mix. Most cars will never need to endure those conditions. So, the standard 50/50 mix will get the job done. If you increase the coolant's BP to 375 F using waterless coolant, the question you need to ask is why do I need to do this when the standard 50/50 mix works just fine? And, if your running a coolant temp of 350F with a waterless coolant, your oem rad probably can't reject that amount of coolant heat. Engine seals may begin to fail, water pump may fail and maybe catastrphic failure of the engine because it's not designed to run at 350 F. Now how hot will your oil temp be? Sounds like pure racing stuff. Using this stuff to remedy an overheating engine is not the way to go. Over heating of the engine, i.e. coolant sytems is probably a problem with the radiator, water pump or partial blockage to the flow of coolant somewhere. Fix the problem and don't use a band aid fix. In summary, the waterless coolant has it's use like in racing, I assume imho.

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DEpointfive0

Just as an FYI, race cars, use 100% water, MAYBE with additives, but not a 50:50 coolant solution or anything close to it

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JWillis72

where I live we don't get below freezing so I'm changing over to water and Water Wetter before my next track day. You are not allowed to use any glycol based products on the track and everyone I have spoke to seem to love Water Wetter and has seen reduced temps.

WaterWetter® Tech Info

DEpointfive0

I use water wetter or... The other one (don't remember the name off the top of my head)

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JWillis72

Are you running it with water? Do you like it?

DEpointfive0

I've run with water, with a 10-20% glycol solution and on 50/50

No complaints, not sure how much cooler I really ran, but for $6-7, why not

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chops

whats your usual coolant temp range? ive run water wetter for the last few months and CSF radiator. hover around 180 degrees most of the time

IDZRVIT

I don't race cars but I see that water is used because ethyl glycol is not environmentally friendly and would be slippery if leaked on a track from an accident and does not evaporate as quickly as water. Also, water is fine for a race car because it's not in an engine long enough to cause corrosion but will still cool adequately under pressure. So, pure water is not better than 50/50 mix for non-race cars. Use a higher flowing water pump and/or a bigger rad for better cooling.

Words of wisdom: "If it ain't broke, don't fix it."

__________________
"America.... still builds rockets!"
Vette: 355 cid, 400 rwhp
'13 CTS-V Coupe: 6.2L LSA, 556HP