LLY: Coolant Change

[lts1ow]

Truck is coming up on 200k, and I do not know history prior to 85k, so I am assuming coolant was never changed.

Is this something worth doing? To me, its not broken so why mess with it, but I know coolant does have a service life. (think OE is 100k?)

Thanks

 

[Burn Down]

I would change it Matt. On the heavy equipment side it can cause all kinds of problems, cavitation erosion, electrolysis etc...

 

[lts1ow]

I would change it Matt. On the heavy equipment side it can cause all kinds of problems, cavitation erosion, electrolysis etc...

You are talking motors with sleeves though no?

 

[Dozerboy]

Why would it matter if its sleeved? I would change it it doesn't cost much and as nasty as my reservoir looked I hope my motor and radiator don't look the same way.


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[bigjohn]

I changed mine twice in three years. Changed when I first bought at 143,789 miles it and then changed it at 183,430 I know it's probably overkill. But I change all the fluids with in 30 to 40,000 miles

 

[Burn Down]

You are talking motors with sleeves though no?

It doesn't matter Matt they can have the same issues.

 

[c20elephant]

I change mine every 3-4 years whether it needs it or not and it is time, I use DexCool at a 60% distilled water and 40% coolant for the last 25 years on my now long gone work truck and this one due to where I live...

 

[Eddie_LLY]

C20 how'd you come up with that ratio? I get that Phoenix has less of a freeze risk than other places and that a higher water to coolant ratio will help expel more heat, I'm just wondering if there's a table you used or what to come to that ratio.
Thanks

 

[ALLY Fox]

Doesn't hurt to change it, but if it has Dexcool, stick with it, there's nothing wrong with Dex as long as you change it at recommended intervals and you don't mix it with anything else. And make sure you purge all the air out or you can have hot spots that can contribute to HG failure.

 

[c20elephant]

C20 how'd you come up with that ratio? I get that Phoenix has less of a freeze risk than other places and that a higher water to coolant ratio will help expel more heat, I'm just wondering if there's a table you used or what to come to that ratio.
Thanks

Read the label on the back of the container..
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