Checking and Changing BRZ/FR-S Engine Coolant

[OnionTou]

*bump* anyone have the info? Thank you!

[FutureFT86]

I dropped mine also when installing. I was lucky enough to loosen a few bolts for the underbody plastic and it was sitting right there. Give it a shot you may get lucky.

[zoth]

Thanks for this, converting to Evans Waterless Coolant.

[Iddoit2er]

Is it normal that my coolant reservoir is empty at less than 30K miles? The filler neck is also dry.

[nunonuna]

Originally Posted by Iddoit2er

Is it normal that my coolant reservoir is empty at less than 30K miles? The filler neck is also dry.

It seems factory didn't make sure to bleed all air out of the cooling system. I had same thing happened, but after I filled more in, coolant level is steady.

[1Cor10:23]

@GrimmSpeed thanks for this post! When you say that coolant should be up to filler neck in radiator...what does that look like? As in, you should see coolant up to ~1 inch or so below the radiator cap?

[Trap63]

It takes few minutes if you remove water pump hose (driver side).....Warn! you cannot remove all coolant from engine and climate unit. At least you will remove 5/5.5 Lts.

[Packofcrows]

Thanks! Didnt see this, i was scratching my head here googling. My fluid is yellowish and watery. The bottom of mine was so dirty i could barely notice the little door, so i used this to get as much fluid as i could:


Gets like 80%??? My guess out. It was plugged in through radiator and reservoir, also had a mini hand pump that u push and it sucks out fluid.

Thanks for the write up.

[stevesnj]

I went to a machine shop to get a head milled and the machinist said that after 30+ years the number 1 reason for head failure is improper coolant (non OEM) and not changing it every 2 years or once a year. He said failure to use proper coolant is the most common cause followed by neglect. He also said the coolant breaks down and looses it's molecular properties to protect the metals internally within 2 years. So no matter what I will be changing with the Blue coolant every 18 months which seems like a good length. This is going to be my DD so I gotta keep it in tip top shape!

I also discovered that the blue stuff is pre diluted to 50/50 mix. Most likely it has distilled water in the coolant. If you need to add to a low cooling system level and only have water, use only Distilled water. House water is a bad idea. Distilled water is like $.80 gallon.

Capacity from the service manual just for reference and requirements for non OEM coolant. Organic coolant anyone? :P

[Jackal84]

Hello to all!

Just a quick question about the coolant.

Here in Italy seem is impossible to find the Toyota/Subaru Blu stuff 50/50 so i searched other products.

Motul advice is this:

https://www.motul.com/it/en/products...inugel-optimal



Go for it?

Thanks!

[mashal]

I use motul, 60/40 mix

[Jackal84]

Originally Posted by mashal

I use motul, 60/40 mix

Hello!

Did you drain all the coolant before put the motul?

Thanks!

[mashal]

Originally Posted by Jackal84

Hello!

Did you drain all the coolant before put the motul?

Thanks!

Yes sir

Sent from my A0001 using Tapatalk

[KalbiCool88]

Toyota Blue, Subaru blue, Nissan Blue, Infiniti Blue, and Honda blue coolant are all the same - manufactured by the same company with the only difference in branding labels.