Replacing green coolant with Toyota red.

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Oct 22, 2013 | 05:40 AM

#61

SCToy

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From: Santa Cruz, CA

Quote:

Originally Posted by nothingbetter

Your joking right? The ratio effects the freezing point as well as the boiling point. Running straight water will boil at 210f- 100c. If that happens you'll probally start blowing hoses from a huge pressure increase. The coolant also acts as a lubricant for the water pump. If you run straight water your water pump bearings won't like it. Ever think about corrosion? Corrosion inhibitors are in your coolant as well. Have fun cleaning your rusty block.

Have had zero issues doing this with boiling or corrosion.
I do change my coolant every year though, the corrosion inhibitors are still there with 25% coolant, they just don't last as long. Running tap water is going to cause way more corosion and electrolysis problems.

Oct 22, 2013 | 05:41 AM

#62

SCToy

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From: Santa Cruz, CA

PS i wouldn't run that ratio if you live in a cold climate.

Oct 22, 2013 | 05:43 AM

#63

SCToy

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From: Santa Cruz, CA

And yes you can run 100% distilled water in a pinch, most track cars are required to run no coolant because it makes the track slick if it gets spilled.