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  1. C

    Peak coolant and 2-EHA

    Has Peak coolant ever had 2-EHA, more specifically the Peak regular green? Reason I ask is I did a stat change, flush and fill today, probably the first time on 15 years. It has always had, as far as I know, Peak regular green antifreeze. Some of the rubber parts were essentially mush. The...
  2. C

    Peak 10x or Zerex G05 for 1988 Toyota Corolla?

    I am replacing the coolant on a 1988 Toyota Corolla that has traditional green in it now. The only coolants that are easy for me to get are Peak 10x and Zerex G05. Which of these 2 would work better in this car?