Do I need to add more coolant? - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

stlgrym3 · 03-24-2019, 10:47 AM

Noticed my coolant level is at midway between max and min. Should I add more? If so, what type of coolant go get?

Sent from my iPhone using Tapatalk

bcj · 03-24-2019, 11:26 AM

Nope. That's right where it should be.

humfrz · 03-24-2019, 03:38 PM

Yep, if your engine was cold at that level, don't mess with it.

It's an expansion tank (see manual).

If you ever have to add coolant use only the Subaru Blue stuff. Or deionized or distilled water if it just is down a little.

humfrz

Mr.ac · 03-24-2019, 06:15 PM

The proper coolant is either the ready mix blue coolant from Toyota, or Subaru's ready mixed coolant.

Here's the deal man,

1. You could buy a gallon of the blue coolant for $40 at the dealership and only use about a cup. Then have it for summer when you'll need to add another half cup.

2. You can buy a gallon of distilled water for $1 and use a cup of it. Then you can have it for the summer when you'll need to add another half cup.

Either way you'll only need about a cup or two to fill up to the line.

humfrz · 03-24-2019, 06:32 PM

Quote:

Originally Posted by Mr.ac

The proper coolant is either the ready mix blue coolant from Toyota, or Subaru's ready mixed coolant.

Here's the deal man,

1. You could buy a gallon of the blue coolant for $40 at the dealership and only use about a cup. Then have it for summer when you'll need to add another half cup.

2. You can buy a gallon of distilled water for $1 and use a cup of it. Then you can have it for the summer when you'll need to add another half cup.

Either way you'll only need about a cup or two to fill up to the line.

Now, Mr.ac, THAT is one of your better posts -

humfrz

ZionsWrath · 03-24-2019, 07:00 PM

Quote:

Originally Posted by humfrz

Now, Mr.ac, THAT is one of your better posts -

humfrz

You meant to say bubba adds a smidge from the garden hose til he thinks its full, right?

humfrz · 03-24-2019, 07:39 PM

Quote:

Originally Posted by ZionsWrath

You meant to say bubba adds a smidge from the garden hose til he thinks its full, right?

Iffen the garden hose ain't hooked up, he just adds a bit of windshield washer fluid -

humfrz

Ultramaroon · 03-24-2019, 07:52 PM

omfg

stlgrym3 · 03-27-2019, 10:48 AM

Quote:

Originally Posted by Mr.ac

The proper coolant is either the ready mix blue coolant from Toyota, or Subaru's ready mixed coolant.

Here's the deal man,

1. You could buy a gallon of the blue coolant for $40 at the dealership and only use about a cup. Then have it for summer when you'll need to add another half cup.

2. You can buy a gallon of distilled water for $1 and use a cup of it. Then you can have it for the summer when you'll need to add another half cup.

Either way you'll only need about a cup or two to fill up to the line.

the line you were referring to was the "max" line?

humfrz · 03-27-2019, 08:01 PM

Quote:

Originally Posted by stlgrym3

the line you were referring to was the "max" line?

Yep, fill to the "max" line if the system is hot. If the system is cold the level should be somewhere mid way between the lines.

humfrz

Mr.ac · 03-27-2019, 10:04 PM

Quote:

Originally Posted by stlgrym3

the line you were referring to was the "max" line?

Yes. If coolant level is at the middle you'll need like 1 to 1 1/2 cup of fluid. From the low level you'll need about 3 to 3 1/2 cups. Give or take a few.

Simple shit huh?

wparsons · 03-29-2019, 10:37 AM

Quote:

Originally Posted by humfrz

Yep, fill to the "max" line if the system is hot. If the system is cold the level should be somewhere mid way between the lines.

humfrz

Quoted for emphasis, don't ever add to the coolant when it's not up to full operating temperature.

DarkPira7e · 03-29-2019, 10:42 AM

And because I've seen it done, please don't add coolant to a hot engine through the radiator cap.

Took nearly 8 months before his face looked good again.

03-24-2019, 10:47 AM	#1
stlgrym3 Senior Member Join Date: Nov 2011 Drives: 2017 Subaru BRZ Limited Location: socal Posts: 562 Thanks: 72 Thanked 51 Times in 44 Posts Mentioned: 3 Post(s) Tagged: 0 Thread(s)	Do I need to add more coolant? Noticed my coolant level is at midway between max and min. Should I add more? If so, what type of coolant go get? Sent from my iPhone using Tapatalk

03-24-2019, 06:15 PM	#4
Mr.ac [insert cool phrase here] Join Date: Aug 2015 Drives: BRZ Premium Location: Central Coast CA Posts: 2,369 Thanks: 709 Thanked 1,558 Times in 930 Posts Mentioned: 30 Post(s) Tagged: 0 Thread(s)	The proper coolant is either the ready mix blue coolant from Toyota, or Subaru's ready mixed coolant. Here's the deal man, 1. You could buy a gallon of the blue coolant for $40 at the dealership and only use about a cup. Then have it for summer when you'll need to add another half cup. 2. You can buy a gallon of distilled water for $1 and use a cup of it. Then you can have it for the summer when you'll need to add another half cup. Either way you'll only need about a cup or two to fill up to the line. __________________ New daily driver - Subaru BRZ Premium Weekend fun/track car - '91 MR2 Turbo Gen3 Old daily driver - '88 MR2 Supercharged

03-24-2019, 07:52 PM	#8
Ultramaroon 義理チョコ Join Date: Sep 2014 Drives: a 13 e8h frs Location: vantucky, wa Posts: 31,866 Thanks: 52,121 Thanked 36,516 Times in 18,918 Posts Mentioned: 1106 Post(s) Tagged: 9 Thread(s)	omfg __________________ service manuals

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03-24-2019, 03:38 PM	#3
humfrz Senior Member Join Date: May 2013 Drives: 2013 FR-S, white, MT Location: Puyallup, WA Posts: 29,866 Thanks: 28,787 Thanked 31,813 Times in 16,424 Posts Mentioned: 708 Post(s) Tagged: 2 Thread(s)	Yep, if your engine was cold at that level, don't mess with it. It's an expansion tank (see manual). If you ever have to add coolant use only the Subaru Blue stuff. Or deionized or distilled water if it just is down a little. humfrz

03-29-2019, 10:42 AM	#13
DarkPira7e Rust bucket enthusiast Join Date: Feb 2017 Drives: 2013 Turbo Firestorm FRS Location: Vermont Posts: 3,933 Thanks: 3,199 Thanked 4,095 Times in 2,045 Posts Mentioned: 31 Post(s) Tagged: 0 Thread(s)	And because I've seen it done, please don't add coolant to a hot engine through the radiator cap. Took nearly 8 months before his face looked good again.

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