Following that line of thinking, you know that this coolant that’s being discussed is anhydrous?
coolant to water ratio for 5.9 cummins
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i don't know if the coolant discussed is anhydrous. i was just sayin that most off the shelf coolant concentrate still has water in it.
Agreed, IIRC the old Prestone jugs used to recommend up to a 70:30 coolant-to-water mixture for maximum antifreeze protection.60 /40 won’t cut it in Edmonton.
Edit: Just checked the OEM website. Their premixed 50:50 coolant is rated for -37°C. A 70:30 mix (full-strength to water) is good to -64°C.
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Unless I’ve mistaken it all my life, pretty sure it’s in F not C. I’m talking my entire life. Could be one of those momentsAgreed, IIRC the old Prestone jugs used to recommend up to a 70:30 coolant-to-water mixture for maximum antifreeze protection.
Edit: Just checked the OEM website. Their premixed 50:50 coolant is rated for -37°C. A 70:30 mix (full-strength to water) is good to -64°C.
I doubt it because 100% is +14 degrees and C would make no sense at all it’s above freezing . 14F is below freezing
https://www.canadiantire.ca/en/pdp/...78-l-0293074p.0293074.html?rq=oem coolant#srpUnless I’ve mistaken it all my life, pretty sure it’s in F not C. I’m talking my entire life. Could be one of those moments
I doubt it because 100% is +14 degrees and C would make no sense at all it’s above freezing . 14F is below freezing
Check out Product Details - stated to be good to -64 C when mixed at 70% concentrate/30% water.
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Interesting, from memory and over 30 years.
50/50 is good to -34F.
100% freezes higher than 50/50 at +14F.
Never memorized what 70/30 actually was and online there seems to be confusion between C and F and the -64 number
This only goes to 60%
This is a pretty good chart and it’s been a while since I posted it so maybe it’s time again.
Also it’s important to understand that diols don’t have a well defined melting point so anything you read or see is subjective.
Also it’s important to understand that diols don’t have a well defined melting point so anything you read or see is subjective.
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This would imply -64 is F, not C. -64C is below the axis
You're right! More investigation (by me) required.
In practical terms, we rarely hit -40° (which is the same in C or F) here, so any concentration that good or better is sufficient.
Interesting! It appears the best they can do (per the linked chart) is -54°F, which is about -48°C, achieved at 56% (4 parts concentrate to 3 parts water).Interesting, from memory and over 30 years.
50/50 is good to -34F.
100% freezes higher than 50/50 at +14F.
Never memorized what 70/30 actually was and online there seems to be confusion between C and F and the -64 number
This only goes to 60%
Like I mentioned these mixtures do not have a well defined melting point so it's possible that they're basing it on being a pumpable slush. There's also "bursting point" where you'll cause damage.
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Have you considered using an OAT coolant like ES Compleat OAT? Million mile, life-of-the-engine coolant that removes the need for SCA's altogether and you can purely top off as needed. Fully-formulated and fully-warranted by Fleetguard.
Nope. There is nothing a million mile, except cummins. If I have to I'll run 100% water before I run that. I'll get regular coolant and I'll just change it every 30k.
There are plenty of over the road trucks running red OAT coolant that have proved it can go a million miles without any issue. It is the superior choice for any diesel coolant application. Not only does it offer better protection it also keeps the cooling system spotless clean.
This!!
I'm sure there are and there is a science to back it up. But I guess I'll be old school and stubborn. On daily driver that gets hot and cold multiple times a day I would have hard time trusting it.