Thread: Rusty Coolant
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Old 10-12-2020, 10:02 AM   #9
WHN
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Join Date: Mar 2017
Location: Connecticut Shoreline
Posts: 1,823
Default Re: Rusty Coolant

Quote:
Originally Posted by Jim/GA View Post
If you want to run straight water, you need to add a bottle or two of "Anti-Rust & Water Pump Lubricant". This stuff is getting harder to find because everyone runs antifreeze in modern cars now. NAPA used to carry it. Also, light grease the water pump fitting closest to the engine, even if you have a modern seal.
Preston anti rust inhibitor, Amazon $5.00. NAPA around here has there own brand of rust inhibitor, about the same price.

I have always used just regular water with rust inhibitor. Water cools better than anti-freeze, if it gets into your oil, water does not have same effect as anti-freeze, less leaking problems with water. I have tried distilled water, but even with using rust inhibitor, water was very rusty when drained.

This, like what motor oil should you use, everyone has a view.

Enjoy.
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