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Old 06-18-2018, 08:04 PM   #11
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Default Re: Coolant replacement

Because i tend to poke the bear, i'd add those "few ounces" of water to see if the "check coolant" warning stopped appearing.
IF it took more than a pint, i'd be concerned.
If the light didn't go off, i'd be concerned.

If the light *did* go off, then i'd think about coolant replacement before winter (depending upon locale)

--dick
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Old 06-18-2018, 11:38 PM   #12
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Default Re: Coolant replacement

What Dick said.

Quote:
Originally Posted by lrickley View Post
I am planning to top off my 2014 I4, ...
You are in the T1N section. NAS aka NAFTA 2001 - 2004 5 cylinder diesel engines.

Your year Sprinter and engine model probably requires a different coolant vs the T1N. Do your research before adding any coolant. Or post your question in the NCV3 section.

vic
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Old 06-20-2018, 04:18 PM   #13
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Default Re: Coolant replacement

I know this is the T1N forum but I thought I'd stop by and share this. 2015 Maintenance Booklet says coolant is good for 15-years. Well, I'll never have to concern myself with replacement, I'll be pushin up daisies by then.
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Old 06-20-2018, 05:25 PM   #14
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Default Re: Coolant replacement

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Originally Posted by Bobnoxious View Post
I know this is the T1N forum but I thought I'd stop by and share this. 2015 Maintenance Booklet says coolant is good for 15-years. Well, I'll never have to concern myself with replacement, I'll be pushin up daisies by then.
Daisies? No probably Pansies or maybe tar weed.
The G48 is life time; it don't go bad with time.
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Old 06-20-2018, 05:43 PM   #15
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Default Re: Coolant replacement

G48 is very similar to G-05.

Use G-05 in your T1N. Your head gasket will thank you. Replace every 5 years or 100k. Which ever comes first. Nothing lasts forever.

Also, running your van diluted by DI/distilled water isn't the best idea. Running it for 3 seconds won't do anything. Run it for 5 minutes and you may find that your water pump has started to weep a bit and then full on leak. Water is a decent lubricant but coolant DOES add proper lubrication for the water pump. I used to do the distilled water flush ~10 years ago in Saabs cuz I thought it was brilliant. It's not.

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Old 06-20-2018, 05:47 PM   #16
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Default Re: Coolant replacement

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Originally Posted by galvinize View Post
2003 T1N, 159,000 miles
This topic of coolant replacement has been covered in previous posts, but some points may be worth re-visiting:

1. Several posts mention flushing the system with distilled water before adding the new G-05 coolant. Why is it necessary to do such a thorough removal of the old coolant?

2. Is it advisable to drain the coolant while still warm so that the thermostat is open (to facilitate block drainage)?

3. Is distilled water advisable only when the water supply has high mineral content (iron, chlorine, sulphur)?
For #1 above: The issue with flushing the system with distilled water is this: When you introduce anything other than a 50%/50% ratio of coolant to distilled water, you lose track of what ratio you actually have in the system. On top of that you are never sure of getting all the coolant out thereby compounding the problem of knowing what exact mix ratio you actually have. You could use a Hydrometer if you trust it's temp reading to tell you your at a 50/50 mix ratio.

For #3 above: Distilled water is cheap! Why risk your "baby" to tap water. Who knows for sure what's in it?

I suggest just draining and filling with premixed 50/50 G-05 a few times to flush. Most auto parts stores now take used coolant. G-05 is pretty cheap at the auto parts stores.

#2 Sounds like a good idea as long as you don't end up burning yourself. You've see this before:

DO NOT REMOVE RADIATOR CAP WHEN ENGINE IS HOT there is a good reason for that.

Anyone else?

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Old 06-20-2018, 06:29 PM   #17
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Default Re: Coolant replacement

Quote:
Originally Posted by silosignal View Post
...

Also, running your van diluted by DI/distilled water isn't the best idea. Running it for 3 seconds won't do anything. Run it for 5 minutes and you may find that your water pump has started to weep a bit and then full on leak. Water is a decent lubricant but coolant DOES add proper lubrication for the water pump. I used to do the distilled water flush ~10 years ago in Saabs cuz I thought it was brilliant. It's not.

Your comments may explain why Joel has noticed leaking after water flushes.

Quote:
Originally Posted by MillionMileSprinter View Post
It's your water pump. Well, I can say that I see the water pumps leaking way way way more often than the thermostats.
And often running (distilled)water through the system causes leaks on a pump that is overdue for a cooling system maintenance. I see it often. My guess is that the thinner, less viscous (as compared to antifreeze) water finds those weak spots and leaks begin.
....
Good luck!
"Overdue for maintenance" may not matter. The lack of lubrication with distilled water may be the culprit.


The G05 flush is looking like the better method.

Quote:
Originally Posted by eralimited57 View Post
...

I suggest just draining and filling with premixed 50/50 G-05 a few times to flush. Most auto parts stores now take used coolant. G-05 is pretty cheap at the auto parts stores.

...
Anyone else?
Full strength will save some money vs pre-mix. Set aside a rinsed gallon container (juice, water, milk, etc.).

Purchase distilled water and G05. They come in gallon jugs. Dump 1/2 of each into your spare container. Dump the balance into the G05 jug. Refill the engine using the G05 container(s) last. That way the leftover will be in the properly labeled container.

vic
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16 ounces of unnecessary prevention can be worth a pound of manure.

Last edited by Aqua Puttana; 06-20-2018 at 06:39 PM.
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Old 06-20-2018, 11:07 PM   #18
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Default Re: Coolant replacement

One option would be to drain and filter the flushing coolant/water mix (assuming no oil contamination). This would allow re-use for flushing. The flushing wouldn't deplete the coolant additives, just particulate contamination, which a fine filter would remove easily.

Aluminum machining operations use an emulsified oil in small quantities with 99% water to make a coolant/lubricant. A small amount could be added to the flush water to provide lubrication to the pump seal.
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Old 06-21-2018, 12:43 AM   #19
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Default Re: Coolant replacement

What color is Zerex G-05?
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Old 06-21-2018, 12:47 AM   #20
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Default Re: Coolant replacement

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Originally Posted by Bobnoxious View Post
What color is Zerex G-05?
Gold to yellowish? A bit of a green tinge in the right light?
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