Author Topic: Coolant cocktail - a more efficient cooling system.  (Read 3310 times)

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Offline bobgroger

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Re: Coolant cocktail - a more efficient cooling system.
« Reply #75 on: October 11, 2017, 12:21:22 am »
The Nikasil problem ended in the late 90's. There were a bunch of engines, particularly BMW 4.4L V8s that has a problem with the high sulfuric fuels from cheapo refiners causing sulfuric acid that corroded the cylinders particularly the top and caused low compression. BMW replaced thousands of engines with "improved" Alusil blocks. Interestingly Porsche also used Nikasil and had no problems. Maybe their owners didn't fill up at the Quicky Mart? AT any rate the problem went away as the EPA mandated lowering the sulfur content and sulfur was totally gone by 2006.
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Offline JimBob

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Re: Coolant cocktail - a more efficient cooling system.
« Reply #76 on: October 11, 2017, 06:59:42 pm »
Quote
and kaw had to nikasil the aluminum to go as large as they did

That is why low quality fuels should be avoided in Kaw engines.



Can you expand on this Roadkill? How does poor quality fuel (<definition needed>) affect Nikasil?

https://www.torquecars.com/bmw/nikasil-issue.php
http://jagrepair.com/NikasilandSulfur.htm
https://en.wikipedia.org/wiki/Nikasil


Cheers...



Thanks - interesting reading.


Is Nikasil the same/similar coating GM used on the 141ci aluminum engines they used in the Vega back in the 70's?

Offline NukeWorker

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Re: Coolant cocktail - a more efficient cooling system.
« Reply #77 on: October 15, 2017, 10:31:21 am »
Got a question

   Use appx 15% non silicate coolant of your choice--- about 16 to 20 oz.


      4-6 oz of a product named "water wetter"
 
      The balance of fill will be DISTILLED water.

  Steve
is that 16-20 oz. of coolant the 50/50 mix, or if using 50/50 mix would I double it to 32-40 oz of coolant?
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Offline Steve in Sunny Fla

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Re: Coolant cocktail - a more efficient cooling system.
« Reply #78 on: October 15, 2017, 11:55:32 am »
Got a question

   Use appx 15% non silicate coolant of your choice--- about 16 to 20 oz.


      4-6 oz of a product named "water wetter"
 
      The balance of fill will be DISTILLED water.

  Steve
is that 16-20 oz. of coolant the 50/50 mix, or if using 50/50 mix would I double it to 32-40 oz of coolant?

if using 50/50 you'ld have to double it. Steve
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Offline NukeWorker

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Re: Coolant cocktail - a more efficient cooling system.
« Reply #79 on: October 15, 2017, 12:06:47 pm »
 :great:
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