Man, i debated this thing with myself years ago...I felt like a complete dumbaz considering coolant at $30 a gallon at 90K on the clock.
At the end of the day, the best alternative I found was a Zerex extended life was about $18/gallon.
At the end of the day, I figured that this was not worth it (to me) to second guess the decision to spend an extra $36 on the P-brand. I figured I may never have to do this again (if I sold the car at some point).
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