Can I run straight water in cooling system?
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Can I run straight water in cooling system?
My truck has sat now for 2+ yrs and for the first year there was a freeze plug missing in the back of the block so the cooling system was exposed to the outside. So I wanted to run water in the system forr a week or 2 to try to rinse it out. Or I am open to suggestions. Thank you
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From: Palo Cedro, CA
get some flush , check this out
https://www.dieseltruckresource.com/d...d.php?t=208530
https://www.dieseltruckresource.com/d...d.php?t=208530
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From: Dallas, GA
You can run straight distilled water with no ill effect, as long as it isn't going to freeze. Water actually cools better than antifreeze. You will have to run an additive in your cooling system for pump lubrication and anti-scale. I prefer Water Wetter by Redline.
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Registered User
Joined: Oct 2008
Posts: 351
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From: Dallas, GA
You can run straight distilled water with no ill effect, as long as it isn't going to freeze. Water actually cools better than antifreeze. You will have to run an additive in your cooling system for pump lubrication and anti-scale. I prefer Water Wetter by Redline.
This is not the best way to clean your system, though. A good flush like the one linked above is best.
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This is not the best way to clean your system, though. A good flush like the one linked above is best.
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From: MyTrailer, Canada
IIRC the max freeze protection is 60% A/freeze. And for water an episode of "Car Talk" quoted a chemist saying tap water was better with antifreeze corrosion inhibitors than distilled. I forget whether it was Click or Clack that said that 
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From: Palo Cedro, CA
https://www.dieseltruckresource.com/...d.php?t=208530
sorry, try this
sorry, try this
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From: Tijeras, New Mexico, 7,000ft up
Tap water in most parts of the country is pretty hard and will scale up the tube entrances and exits in the radiator. And NEVER use softened water, the salt will ruin the engine. I jsut buy the 50-50 pre-diluted stuff, then I don't have to worry about it.
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From: MyTrailer, Canada
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From: Phoenix AZ
Mark. you surprise me. Why would you pay 4 dollars a gallon for water? That is what you are doing by buying the pre mix. Better to save an empty gallon container, buy the 100%, pour half into the empty and fill both with water. Or, even better IMHO, just skip the water and just run the anti freeze (said as I take cover under a table)...Mark
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From: Phoenix AZ
...Mark Edit: I knew my math was off, that is 4 dollars for a HALF gallon of water, that would be 8 dollars a gallon for the water 
YIKES!!!! Mark