can i mix water and coolant if its the summer? - Page 2

D_Train · 04-23-2007, 02:04 PM

Thanks for the tips guys! I guess i just won't be a lazy ass and i'll make it to the store for some 50/50. Nice to see another milwaukee guy!

supramacist · 04-23-2007, 03:46 PM

I meant 70% coolant. 30% water. Is this still wrong. I agree with the distilled water. There just aren't many people that take that time. I am guilty of not always doing it myself.

How can 70/30 be bad when they sell 50/50 ?? I also use high dollar antifreeze. I don't use the cheap chit main.

IHateHacks · 04-23-2007, 03:55 PM

That is what XX/XX means= Coolant%/water%.

Like I said, you don't need 70/30 unless it stays below 0 degrees F, not 0 degrees C, 0 degrees F which is -18 degrees C. Doesn't get that cold in the US. You are lowering your boiling point with 70% coolant/30% water mixture.

I only use prestone for any make/model and distilled.

supramacist · 04-23-2007, 04:24 PM

I thought I knew what I was talking about now I am just confused.

So I am mixing it too rich is what you are saying?
I have always been under the impression that it was best to use straight, no mix.

Especially in the winter.

IHateHacks · 04-23-2007, 04:32 PM

50/50 is the best mixure to use in the summer or the winter. Not 100/0 (all coolant). Not 0/100 (all water). Not 70/30. Even if it was 0 degrees F outside and you ran 100% coolant your engine would still overheat. This is not my opinion, its a proven fact.

Did you get that crank pulley off yet?

Kuban · 04-23-2007, 04:37 PM

Quote:

Originally Posted by IHateHacks

50/50 is the best mixure to use in the summer or the winter. Not 100/0 (all coolant). Not 0/100 (all water). Not 70/30. Even if it was 0 degrees F outside and you ran 100% coolant your engine would still overheat. This is not my opinion, its a proven fact.

Did you get that crank pulley off yet?

exactly, i described exactly why in my previous post.

supramacist · 04-23-2007, 05:42 PM

Alright good to go. 50/50 it is.

Starter in. Crank pulley off. Waiting on the correct idle tensioner pulley. I thought it looked different but wasn't sure. Car is still up on the floor jack, I'll be back in the garage tonight. lol. I guess I can let the car down.

cars4me89 · 04-24-2007, 06:48 AM

I'm not sure how accurate previous statements have been about how ethylene glycol is what raises the boiling tempurature. In fact, the radiator cap is what raises the boiling tempurature of the fluid. All that coolant/anti-freeze does is lower the freezing point and provide anti-corrosive agents to the mixture. I believe that the formula for your boiling point of the cooling system is for every 1 psi your radiator cap is rated to equals 3 degrees farenheit higher boiling point tempurature. So, since Supra radiator caps are manufacturer specified at 13 psi, that would equal a total boiling point of (straight water, 50/50, 70/30), whatever you're using to around 255 degrees farenheit.

Kuban · 04-24-2007, 07:04 AM

Quote:

Originally Posted by cars4me89

I'm not sure how accurate previous statements have been about how ethylene glycol is what raises the boiling tempurature. In fact, the radiator cap is what raises the boiling tempurature of the fluid. All that coolant/anti-freeze does is lower the freezing point and provide anti-corrosive agents to the mixture. I believe that the formula for your boiling point of the cooling system is for every 1 psi your radiator cap is rated to equals 3 degrees farenheit higher boiling point tempurature. So, since Supra radiator caps are manufacturer specified at 13 psi, that would equal a total boiling point of (straight water, 50/50, 70/30), whatever you're using to around 255 degrees farenheit.

I dissagree. The mixture definately plays a part in the boiling point. Think about it. If he was running straight water, his boiling point would be 100 deg. celcius indefinately. No questions asked, that IS what it would be.

cars4me89 · 04-24-2007, 07:09 AM

I'm sorry but that is a false statement.. water will boil at 100 degrees celcius, true. But why do you put the radiator cap on? the radiator cap raises the boiling tempurature. The ethlyene glycol has nothing to do with boiling point only anti-corrosion inhibitors and freezing point. This will work 100% guarenteed if you try it on your vehicle. You could replace all the coolant with straight water. bring the engine to operating tempurature and the water would not boil and 100 degrees celcius, yes it will rust your block no doubt but it would not boil until higher than 100 degrees C

04-23-2007, 04:32 PM	#15
IHateHacks 20psi boost Join Date: May 2006 Location: New Haven/Hamden Posts: 793	50/50 is the best mixure to use in the summer or the winter. Not 100/0 (all coolant). Not 0/100 (all water). Not 70/30. Even if it was 0 degrees F outside and you ran 100% coolant your engine would still overheat. This is not my opinion, its a proven fact. Did you get that crank pulley off yet? Last edited by IHateHacks; 04-23-2007 at 04:36 PM.

04-24-2007, 06:48 AM	#18
cars4me89 3" Exhaust Join Date: Jun 2006 Location: Phoenix, AZ Posts: 115	Coolant mixture raising boiling tempurature? I'm not sure how accurate previous statements have been about how ethylene glycol is what raises the boiling tempurature. In fact, the radiator cap is what raises the boiling tempurature of the fluid. All that coolant/anti-freeze does is lower the freezing point and provide anti-corrosive agents to the mixture. I believe that the formula for your boiling point of the cooling system is for every 1 psi your radiator cap is rated to equals 3 degrees farenheit higher boiling point tempurature. So, since Supra radiator caps are manufacturer specified at 13 psi, that would equal a total boiling point of (straight water, 50/50, 70/30), whatever you're using to around 255 degrees farenheit. __________________ 1987 Toyota Supra 7M-GE Natrually Aspirated Automatic http://www.cardomain.com/ride/2385905 Currently enrolled in UTI (Universal Technical Institute.. ya ya say what you want bout the school lol its got some nice benefits though), have about two years of auto experience so far.. only 18 years old. My supra's older than me :P -Phil

04-24-2007, 07:09 AM	#20
cars4me89 3" Exhaust Join Date: Jun 2006 Location: Phoenix, AZ Posts: 115	I'm sorry but that is a false statement.. water will boil at 100 degrees celcius, true. But why do you put the radiator cap on? the radiator cap raises the boiling tempurature. The ethlyene glycol has nothing to do with boiling point only anti-corrosion inhibitors and freezing point. This will work 100% guarenteed if you try it on your vehicle. You could replace all the coolant with straight water. bring the engine to operating tempurature and the water would not boil and 100 degrees celcius, yes it will rust your block no doubt but it would not boil until higher than 100 degrees C __________________ 1987 Toyota Supra 7M-GE Natrually Aspirated Automatic http://www.cardomain.com/ride/2385905 Currently enrolled in UTI (Universal Technical Institute.. ya ya say what you want bout the school lol its got some nice benefits though), have about two years of auto experience so far.. only 18 years old. My supra's older than me :P -Phil

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04-23-2007, 02:04 PM	#11
D_Train 3" Exhaust Join Date: Mar 2007 Location: Wisconsin Posts: 214	Thanks for the tips guys! I guess i just won't be a lazy ass and i'll make it to the store for some 50/50. Nice to see another milwaukee guy!

04-23-2007, 03:46 PM	#12
supramacist 1000whp postwhore Join Date: Apr 2007 Location: Escape from the Prison Planet Posts: 1,356	I meant 70% coolant. 30% water. Is this still wrong. I agree with the distilled water. There just aren't many people that take that time. I am guilty of not always doing it myself. How can 70/30 be bad when they sell 50/50 ?? I also use high dollar antifreeze. I don't use the cheap chit main.

04-23-2007, 03:55 PM	#13
IHateHacks 20psi boost Join Date: May 2006 Location: New Haven/Hamden Posts: 793	That is what XX/XX means= Coolant%/water%. Like I said, you don't need 70/30 unless it stays below 0 degrees F, not 0 degrees C, 0 degrees F which is -18 degrees C. Doesn't get that cold in the US. You are lowering your boiling point with 70% coolant/30% water mixture. I only use prestone for any make/model and distilled.

04-23-2007, 04:24 PM	#14
supramacist 1000whp postwhore Join Date: Apr 2007 Location: Escape from the Prison Planet Posts: 1,356	I thought I knew what I was talking about now I am just confused. So I am mixing it too rich is what you are saying? I have always been under the impression that it was best to use straight, no mix. Especially in the winter.

04-23-2007, 05:42 PM	#17
supramacist 1000whp postwhore Join Date: Apr 2007 Location: Escape from the Prison Planet Posts: 1,356	Alright good to go. 50/50 it is. Starter in. Crank pulley off. Waiting on the correct idle tensioner pulley. I thought it looked different but wasn't sure. Car is still up on the floor jack, I'll be back in the garage tonight. lol. I guess I can let the car down.