What extended life coolant for really cold temps?

[99' Powerstroke]

I'll need to change my coolant in about 3K miles and wanted to switch to extended life coolant because I'm tired of screwing around with additives. I may be going to Alaska for a while and could see some -50 F temps. I checked shell and chevron coolants and they have freeze points around -30 F, so it doesn't sound like they will be good enough. So what extended life coolant can keep me protected during the Alaska winters?

[99' Powerstroke]

I know there are some guys on here that run their trucks in Alaska and Canadian winters. What kind of coolant are you guys using?

[rufushusky]

Originally Posted by 99' Powerstroke

I know there are some guys on here that run their trucks in Alaska and Canadian winters. What kind of coolant are you guys using?

Check out the link below.

https://cglapps.chevron.com/msdspds/...&docFormat=PDF

Looks like if you run 60% coolant your fine.

[Flatbedcowboy]

If your truck is an EARLY 1999 they say not to run ELC do to it eating injector cups or something like that.

[99' Powerstroke]

Thanks. I guess I will have to put in a 60% mix. I was hoping I could be lazy and just find a 50/50 mix to dump in. Would a 60% mix lower the boiling point. I don't want to have to change the coolant every season.

I've never heard anything about not running ELC in early 99 trucks. Don't know why it would be a problem. I have a late 99 anyway.

[rufushusky]

The oat chemistry of an elc will eat the sealant used on the injector cups causing coolant and fuel to mix.

[HarvestingInternationally]

^ thats interesting...never knew that

[6.0f250firstcar]

Originally Posted by rufushusky

The oat chemistry of an elc will eat the sealant used on the injector cups causing coolant and fuel to mix.

I assume that doesn't apply to the 6.0 trucks because everyone says use an ELC in those.


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[jesilvas]

any CAT EC-1 is fine, just need to adjust concentrations.
the no elc applies to early 99s and older. 99 and up is fine

I made my Samsung SGH-I997 send this.

[jesilvas]

Originally Posted by 99' Powerstroke

Thanks. I guess I will have to put in a 60% mix. I was hoping I could be lazy and just find a 50/50 mix to dump in. Would a 60% mix lower the boiling point. I don't want to have to change the coolant every season.

I've never heard anything about not running ELC in early 99 trucks. Don't know why it would be a problem. I have a late 99 anyway.

If you read, you'll know not to dump in a 50/50 pre mix.

I made my Samsung SGH-I997 send this.