Lately I've read a lot of talk about using distilled or purified water
in the radiator.
However, after a normal cooling system fllush, many/most/my cooling
system is still half full with water, and to get a 50/50 mix, I add
one gallon of antifreeze. So where does distilled water come in?
Do some people flush their systems with distilled water? I thought
everyone, including dealers and other shops, used a garden hose and
What does SCA mean? The Prestone website refers to it a lot. Some
kind of coolant additive.
And is there really a difference in the kind of antifreeze a new
Toyota needs? My 2000 Toyota onwers manual just says to use long
life coolant. But I see discussions in a Toyota webforum (ugh),
probably referring to much more recent cars, that says Toyotas need
different stuff. Or do the people who say that just belong to a
The water in my area has a high calcium, iron, and radium content
so its only good for drinking, not for automotive use.
I learned the hard way after 3 radiators and 3 heater cores
in my last car. So now I flush the radiator twice with tap water
then flush once more with distilled water. Its cheap enough.
Add the appropriate amount of 100% antifreeze and top off with
distilled water. I also used distilled water in the window washer.
I prefer to not use any Supplemental Coolant Additives.
I cannot answer your Toyota specific questions.
My Kia only holds about 2 1/2 gallons total and I am able to
get most of it out.
Yes, fill run up to temp, drain. It takes me half a day
to do the work since I let it cool down with the aid of a
floor fan between runs.
Its not good to add cold water to a hot engine.
I think he's speaking loosely or counting the radiator as part of the
engine. It's not good to add cold water to a hot radiator. At least
not to add it in large amounts. If some of the radiator metal is hot
and other parts cold, the difference in heat expansion can cause bends
and leaks, aiui.
But I believe one can pour a stream of cold, probably room temp,
water in the radiator neck that mixes with the hot water and doesn't
cause problems. At least I've done that a lot of times, with no harm
you explained yourself perfectly, but i however have apparently failed
to get my point across or provoke a "thought" reaction.
the whole point of the cooling system is to dump cold water into the
engine. unless your engine is at maximum temperature, and your coolant
is at freezing, and your engine is defective because it has some kind of
casting flaw, any temperature differential you can create with a bottle
of fresh coolant is not going to be a problem. radiators don't have
thermal expansion problems because the metal is so thin, there's no
temperature gradient worth worrying about. and thermal stress in an
engine block is well within the bounds of normal operation.
and even this misses the bigger picture of why this myth arises in the
first place - you don't change coolant on a hot engine so you don't get
this should answer most of your questions:
in short, yes, distilled/deionized water is the way to go. shops that
use hose water either don't know, or worse, /do/ know that it'll shorten
the life of your cooling system,
[deionized water is NOT softened water or purified water. softened
water can be even worse than ordinary hose water. as p.i.h says,
distilled is cheap enough.]
some "long life" coolants use a high sodium hydroxide content, which is
not well regarded in some quarters. unless you know the chemistry of
the new coolant you're proposing to use, the "safe" option is to use
toyota coolant or at least one of the "asian vehicle" formulas.
Yes, iirc, distilled is hardly any more money than purified, whatever
Back in 2000, their owners manual said nothing about this. I hate
webforums, for about 20 reasons, but I've tried to read Solaraguy and
Toyotanation, and most of the people there have late model cars. Then
i tried to read from 2000 on, but it takes so long. Terrrible
format, compared to newsgroups and even compared to emaiil lists.
I think one of the great tragedies of the modern Internet is the decline of
I hate Web boards. They're full of ads and flashy graphics, and there's no
threading. Usenet is so much more compact and readable, with much more actual
per inch of screen-space than Web boards.
As far as I'm concerned, the only real drawback to Usenet is its unmoderated
In most (if not all) groups there's no way to keep spammers out except by
after the fact, and deleting their posts from your personal archive.
Unless you're Google. Then you give users a Web-board portal to Usenet,
and put your ads there, all the while fooling users into thinking Google
controls the groups therein...
Censorship is only wrong if you're shutting people up on property that's
not yours, or shutting people up in situations where you have
third-party status or lower.
The only organization capable of censorship is the government, since
that's the /only/ organization with legal power to interfere in
situations where the individuals working for the government are neither
first- nor second-parties.
I help moderate a Yahoo group, and I can tell you I do /not/ shut people
up, even though it would be perfectly within my rights to do so. We have
been remarkably successful in keeping the group spam-free.
Usenet's lack of moderation is a form of anarchy. People tend to be
un-fond of anarchy. That's just one reason it has declined in
conjunction with the rise of Web-boards.
no, it's a form of freedom. freedom to say things that pisses other
people off - whether that be political free speech, pointing out fact
that might contradict someone's cherished opinions or mere profanity.
anyone that could call it "anarchy" does so because they have their own
control issues. and, i suspect, is someone who doesn't really
understand what "freedom" entails.
"Freedom" is inextricably bound-up with "property".
You do not have "freedom" with my property and I can't make free with
yours. I think you would very much object if I came over to your place and
spray-painted slogans or profanity all over your car.
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