What coolant should I run in my radiator?

Grinder34

Track Monkey
I'll be bumping a few old threads, but can anyone chime in about the subaru green vs subaru blue coolant? What was the change there? And also I can't exactly remember what the deal was with some "shark chum" looking coolant addative I did with my last coolant change. I remember researching it, and deciding it was necessary, but don't remember much else.
 

IGOTASTi

System Operator
Staff member
We're not much help as we use Amsoil coolant.

Sorry ?

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