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Coolant flush ?

Old 05-25-2020, 03:47 PM
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Default Coolant flush ?

Going to flush the coolant on my brides Toyota 4Runner and two Toyota mechanics on another site said to only use Toyota OEM antifreeze, supposedly it's Red in color and has other benefits.

Now, it's much more expensive per gallon, is it worth it?

Seeing as I live in FL, is there really a need?
Old 05-25-2020, 04:08 PM
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No...you want the steps...don't over think this..
why are you doing it?
Old 05-25-2020, 04:13 PM
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Toyota coolant dries up like a clot when it starts leaking somewhere like radiator or waterpump where other types of coolant will just piss out everywhere. I would use it for that reason alone.

Edit: Also depending on year the super long life coolant is rated to last 100,000 miles before replacement.
Old 05-25-2020, 04:17 PM
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Originally Posted by spraynet 1 View Post
Going to flush the coolant on my brides Toyota 4Runner and two Toyota mechanics on another site said to only use Toyota OEM antifreeze, supposedly it's Red in color and has other benefits.

Now, it's much more expensive per gallon, is it worth it?

Seeing as I live in FL, is there really a need?

In all my years never changed coolant unless it involved a repair. Never. Aint broke leave it alone

Toyota coolant is Hybrid Organic Acid Technology (HOAT). coolant with a small amount of silicates.
For vehicles newer than 2002, specifically Mercedes, Volvo, Ford, VW, Audi, Chrysler, BMW and Saab.
https://www.toyota-4runner.org/3rd-g...r-coolant.html

prestone hoat coolant

Last edited by Thalasso; 05-25-2020 at 04:28 PM.
Old 05-25-2020, 04:21 PM
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If the cooling system is due for service (and no sooner), service it the way Toyota says, which could very well not be a flush, but rather drain and refill the radiator. Ask the Toyota mechanics on that other forum for the right procedure and use the Toyota-brand coolant. You'll have less trouble with the cooling system in the future.

FWIW, the original coolant in your Toyota should be good for 100Kmiles. I expect the factory-recommend service is...at 100Kmiles, drain and refill the radiator and coolant overflow reservoir. After the first drain and fill, repeat drain and fill every 50Kmiles. "Flushing" is not required.

It's the same thing with our 2009 Honda Accord.
Old 05-25-2020, 04:22 PM
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Originally Posted by Thalasso View Post
In all my years never changed coolant unless it involved a repair. Never. Aint broke leave it alone
Chrysler heads are prone to rot if you don't...fyi
should be done in any vehicle after or on 70K...imo
Old 05-25-2020, 04:51 PM
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I have no input on the modern stuff, in the old days you had to change and flush or it would eat up the metal in the motors.
with the switch to a lot of aluminum in todays motors, I would follow factory recommendations
Old 05-25-2020, 05:33 PM
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Steps..? Not certain what you mean! I've done lots of flushes before...easy peezy.

I have not flushed / replaced the coolant in this 4-Runner for 80,000 miles, it needs it. Just want to know if the OEM antifreeze is worth the extra cost.

Guys on the other forum say yes.
Old 05-25-2020, 05:35 PM
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i follow the manual / manufacturer recommendations
Old 05-25-2020, 06:21 PM
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I've flushed the coolant on her every 75,000 miles like clockwork, has worked out well so far. I'm sure the book says only Toyota coolant, but EVERY book says that, very often that can be a huge waste of money.
I've now gotten 11 responses from another forum and they all say that the OEM coolant has lots of crap normal stuff does not have. Just wanted to hear from the guys here as well, I trust you more. Guess I can up my game seeing that she's no spring chicken.
Old 05-25-2020, 06:27 PM
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Originally Posted by Toyomo View Post
Toyota coolant dries up like a clot when it starts leaking somewhere like radiator or waterpump where other types of coolant will just piss out everywhere. I would use it for that reason alone.

Edit: Also depending on year the super long life coolant is rated to last 100,000 miles before replacement.

They have a super long life coolant.....what will they think of next. I'll check what the price of that is for chits & giggles...
Old 05-25-2020, 06:32 PM
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Originally Posted by spraynet 1 View Post
Going to flush the coolant on my brides Toyota 4Runner and two Toyota mechanics on another site said to only use Toyota OEM antifreeze, supposedly it's Red in color and has other benefits.

Now, it's much more expensive per gallon, is it worth it?

Seeing as I live in FL, is there really a need?
Red goes with red, green goes with green. Don't mix the two.

You can buy the red stuff at the auto supply place. Just had to buy a gal. 14 dollars but all they had was the high end stuff. Walmart red is just as good. Just don't mix it with green. 50/50 mix and yes you living in fla makes a difference. You need more protection than we do . YOur under hood temps run hotter and your motors down there need all the protection they can get. .
Old 05-25-2020, 06:36 PM
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I have an '07 V-8. It calls for a timing belt replacement every 90K miles. I put in new coolant at the same time. I use the Toyota stuff.
Old 05-25-2020, 07:01 PM
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Damn timing belt, just had that done 20,000 ago or so. #@$%^&(*&^%$#$%^&*( : banghead:: banghead:: banghead:

Just ordered two gallons of the OEM Red stuff. Need this truck to give me another 100,000 so I guess I can pamper her a little.

Liveaboard74.......From my experience anything at wally world is the cheapest possible and pales in comparison to the real thing. I could certainly get away with that, but with as many miles as she has I'd prefer the stuff I know for certain is the best. My mind started out as "Can I get away with" and talking with lots of folks has been completely changed to "Using the good stuff". Lord I'm a mess!

Thanks everyone!
Old 05-26-2020, 05:42 AM
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Good morning!

did you remove the thermostat prior to flushing and replace with new after? Or will you?
Old 05-26-2020, 05:51 AM
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Originally Posted by mystery View Post
i follow the manual / manufacturer recommendations

Google is your friend.

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