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Old 06-21-2018, 12:56 AM   #21
CJPJ
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Default Re: Coolant replacement

Quote:
Originally Posted by Bobnoxious View Post
What color is Zerex G-05?
Yellow? https://www.valvoline.com/our-produc...engine-coolant
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Old 10-05-2018, 05:10 PM   #22
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Default Re: Coolant replacement

I bought my 06 Sprinter I-5 with blue Mercedes coolant in the engine (engine was rebuilt in 2016). I have a coolant leak that I need to address, and I also need to top off the system before driving again. Is it ok to buy Zerex G-05 locally and mix it with the Mercedes blue coolant? I've read answers that lean toward yes but trying to get a little more definitive before buying. Does anyone know if its definitely ok to mix these two? Thanks!
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Old 10-05-2018, 05:18 PM   #23
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Default Re: Coolant replacement

Yes, all hoat coolants can be mixed.
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Old 01-06-2019, 08:45 PM   #24
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Default Re: Coolant replacement

Quote:
Originally Posted by Bobnoxious View Post
What color is Zerex G-05?
Mine appears to be gold colored
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Old 01-07-2019, 02:53 PM   #25
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Default Re: Coolant replacement

A reply to an older post.

Quote:
Originally Posted by silosignal View Post
G48 is very similar to G-05.
...
My understanding is that the G48 formulation was required to meet Euro standards. I believe it relates to their regs... phosphate free. (Maybe gleaned from previous BeVo information?)

There is no reason to stray from the G05 HOAT formulation if you are in N. America.
It appears that Zerex G05 has fallen off the list for MB325.0 coolant. Not because it isn't approved at all, but because it is no longer approved for Euro markets. It has been listed in Owner/Operator Manuals so it remains approved. MB states that the Operator Manual always applies (evergreen).

Added:
"The G-30 is basically the same as DexCool.

The G-05 has more reserve alkalinity than the G-48 and has replaced G-48 as factory fill for Mercedes. [I believe G48 has replaced G05. - vic] They both originate with BASF in Germany in the Glysantin line:

http://www.basf.de/en/produkte/chemi...0qgQ5i2wbsf1i6

The G-48 is nitrite-free, which means unlike G-05 it can�t be used with wet sleeves. G-05 has a smidgeon more silicate than G-48.

And its [G48] availability in North America is thin, indeed. Valvoline suggests using G-05 to replace it."
https://www.bobistheoilguy.com/forum...&Number=613531

Zerex G05 has properties which G48 does not.
Nitrites = protect against cavitation.
More reserve alkalinity = longer coolant service life.
Also. (Not G05 specific.)
Carboxylates = cavitation protection.
https://www.machinerylubrication.com...t-fundamentals

Quote:
Originally Posted by silosignal View Post
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.


My mode is to change the coolant on the proper schedule. Coolant changed on proper schedule is perfectly serviceable product. It is toxic waste to the EPA, but not to your engine. I won't use any flush chemicals or procedures unless visual inspection or symptoms show the need.

vic
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Last edited by Aqua Puttana; 01-08-2019 at 02:27 PM.
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Old 04-09-2019, 02:07 AM   #26
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Default Re: Coolant replacement

I drained radiator through the metal coolant pipe connection, two gallons. I filled up with two gallons. Is this correct?
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Old 04-09-2019, 02:12 AM   #27
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Default Re: Coolant replacement

Not quite!!
Did you drain the block?
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Old 04-09-2019, 02:35 AM   #28
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Default Re: Coolant replacement

No.
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Old 04-09-2019, 03:16 AM   #29
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Default Re: Coolant replacement

Then you didn't flush it properly.
The method is to remove the hose from cooler to block stub and back purge it with a garden style hose under pressure, obviously with the lower hose removed from the radiator stub to allow waste coolant expulsion & collection.
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