"Bouldaru" (alphadogg14)
06/16/2016 at 23:33 • Filed to: None
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"Bouldaru" (alphadogg14)
06/16/2016 at 23:33 • Filed to: None | 1
| 30 |
Can someone explain please?
Also: this was the coolant in my car. Yuck!
Bman76 (no it doesn't need a WS6 hood) M. Arch
> Bouldaru
06/16/2016 at 23:36 |
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Those metals do oxidize, but they generally aren’t called rust...
CB
> Bman76 (no it doesn't need a WS6 hood) M. Arch
06/16/2016 at 23:38 |
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I was going to say, there’s a reason why the roofs of our parliament buildings are green.
TheHondaBro
> Bouldaru
06/16/2016 at 23:40 |
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Regardless of what it’s called, you don’t want your metals oxidizing.
!!! UNKNOWN CONTENT TYPE !!!
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Bman76 (no it doesn't need a WS6 hood) M. Arch
> CB
06/16/2016 at 23:40 |
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Exactly.
Slant6
> Bouldaru
06/16/2016 at 23:49 |
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Are you running straight water right now? That’s absolutely fine if you use the car everyday.
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Bouldaru
> Slant6
06/16/2016 at 23:54 |
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Right now yes. I’m running water and prestone coolant flush, but I’m leaving my car at the airport over the weekend (Fri-Sun) but I’m thinking it should still be fine
samssun
> Bouldaru
06/16/2016 at 23:55 |
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I don’t think it’s unreasonable to genericize rust to other metal oxides since it’s the same process. Big differentiator is that aluminum & copper oxides don’t corrode since they stop at the surface level.
Mercedes Streeter
> Bouldaru
06/16/2016 at 23:56 |
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“Bro” is right-ish, those metals do not rust in the traditional sense, but they will get some mean oxidation that’s something you really don’t want.
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Bouldaru
> Mercedes Streeter
06/16/2016 at 23:59 |
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I never said metals don’t oxidize. I just said that only iron rusts
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Slant6
> Bouldaru
06/17/2016 at 00:00 |
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I wouldn’t worry about it.
lone_liberal
> Bouldaru
06/17/2016 at 00:00 |
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You are right that it can’t rust.
“Several forms of rust are distinguishable visually and by spectroscopy, and form under different circumstances. Rust consists of hydrated iron(III) oxides Fe2O3. nH2O, iron(III) oxide-hydroxide (FeO(OH), Fe(OH)3. Rusting is the common term for corrosion of iron and its alloys, such as steel.”
Your friend is right that other metals do oxidize.
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Mercedes Streeter
> Bouldaru
06/17/2016 at 00:09 |
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True! Just don’t run water any longer than you have to...even in an aluminum system water can wreak havoc.
MountainRoadPhysicist
> samssun
06/17/2016 at 00:13 |
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Pretty much. Most metallic oxides are only 3-5 atomic layers deep.
Variance
> Bouldaru
06/17/2016 at 00:22 |
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I believe that galvanic corrosion is one of the primary concerns when running straight water in a mixed-metal environment like an engine cooling system. Compounds within the antifreeze inhibit the electrochemical reactions that cause the corrosion. This is why, in warmer climates where antifreeze is not needed, people will still run something like “Water Wetter” that contains these essential compounds.
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Bouldaru
> Variance
06/17/2016 at 00:24 |
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distilled water should inhibit the flow of electrons, no? (water doesn’t actually conduct electricity, it’s its impurities that does)
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Variance
> Bouldaru
06/17/2016 at 00:30 |
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In theory, yes, but as it flows through the system, it will pick up impurities that gradually allow it to become an electrolyte. This is why it’s okay to run straight water temporarily, but not for an extended period of time.
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Bouldaru
> Variance
06/17/2016 at 00:37 |
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Until Sunday night should be fine, yeah?
MrDakka
> Bouldaru
06/17/2016 at 00:45 |
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Hold on, there’s a gonna be a test afterwards.
Pure aluminum doesn’t “rust” in the same manner like iron alloys. It forms an aluminum oxide, Al2O3, layer. This is the “rust” that forms on all exposed pure aluminum in an extremely thin (couple to several angstroms thick, increasing as time passes) surface layer. This oxide layer protects the underlying aluminum from further oxidation and unlike rust on iron alloys, does not flake off and is rather inert. Al2O3 is the same molecule of which rubies and sapphires are composed. It is also called alumina and in sintered form is used in ballistic armor/refractory/industrial/abrasive applications and is usually white in color. It is also called corundum in mineral form.
Aluminum alloys WILL corrode, which is what your engine parts are made of, as pure aluminum is usually too soft to be useful. That said, if your radiator is stated to be anodized then I wouldn’t worry. Anodized aluminum is a passivation method that forms a thick aluminum oxide coating on the surface, which should be resistant to most chemicals. Even without anodization, I wouldn’t be too worried, if you’re using mostly dH2O.
Copper does the same thing and forms a patina from the tarnish. However, it is a mix of oxides, sulfates, carbonates, etc. unlike the protective oxide layer that aluminum forms. This patina is green in color (termed verdigris), which is usually derived from the copper carbonate or copper chloride NOT copper oxides (which are mostly black or red in color). This is what you see on the roofs of fancy schmancy places and the Statue of Liberty
Baeromez
> Bouldaru
06/17/2016 at 00:54 |
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Rust is iron oxide. Other forms of metallic oxidation may be called either “oxidation” or “corrosion.”
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Bouldaru
> Baeromez
06/17/2016 at 00:55 |
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That’s what I said
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Baeromez
> Bouldaru
06/17/2016 at 00:56 |
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PS: Distilled water is safe to run for much longer than tap water.
Denver Is Stuck In The 90s
> lone_liberal
06/17/2016 at 00:59 |
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Not friend, brother. He texted me this saying he was running straight distilled water for a week and asked me why his coolant was dark. My brother is not intelligent
sony1492
> Bouldaru
06/17/2016 at 01:00 |
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As it was explauned to me by a mechanic of 25+ years;
The Ph of the antifreeze changes over time as it breaks downlead. This leads to gaskets getting corroded and/or eaten, he went further to say that this Ph issue is a leading cause of headgasket failure. Chances are water is not the Ph the motor was intended to withstand.
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Denver Is Stuck In The 90s
> samssun
06/17/2016 at 01:00 |
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Thank you
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lone_liberal
> Denver Is Stuck In The 90s
06/17/2016 at 01:07 |
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Oops! Yeah, running distilled water is perfectly fine and if you lived in a temperate enough climate you could probably get away with it permanently. I know I’ve done it on a temporary basis before with no negative consequences.
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Denver Is Stuck In The 90s
> lone_liberal
06/17/2016 at 01:27 |
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We live in Colorado. Where July blizzards are a thing
Brian McKay
> Baeromez
06/17/2016 at 02:14 |
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Bingo!
PS9
> Bouldaru
06/17/2016 at 06:22 |
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Yeah, I’d be done talking to the guy in blue. No need to contact someone who’s going to be a total asshole about minor trivia.
nafsucof
> Bouldaru
06/17/2016 at 10:40 |
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Well in the first picture you had 4% but the second was at 2% so your battery was dying.
torque
> Bouldaru
06/17/2016 at 11:35 |
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This got me thinking what about race cars?
SCCA, NHRA, + others prohibit coolant b/c its super slippery & sucks to clean up on track
Quick google search...
seems most people tracking their cars, run dH20 + water wetter for corrosion protection during race season, then drain the system for off-season