what coolant?

[LOOMER]

I just got done doing a fresh rebuild on my 79 2f. Realized i put in a toyota orange coolant. Should it be green or does it really matter? I know some engines are temperamental.

thanks,

 

[climber8483]

I've always used the green regulat coolant, but thats just because I'm cheap and she leaks....

 

[lostmarbles]

I don't think colour has anything to do with quality as far as coolant is concerned.

The important things are:

• Who makes it (which determines whether the label data can be trusted),
• What chemicals it is composed of,
• What concentration you're using it at (in relation to the water that's usually mixed in with it)
• Whether the water you've mixed in with it is contaminated with unwanted stuff or not.

 

[Spike Strip]

Green. Red if you're running an Alum rad, but otherwise good brand green.

 

[Pighead]

I know some engines are temperamental.

2Fs are not. Does it freeze where you live? I used plain old water for many years, before moving to Denver.