Green coolant or red coolant?

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by Vio, Dec 3, 2017.

  1. lwlevens

    lwlevens Medium Load Member

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    Feb 9, 2018
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    I just bought a couple gallons of Zerex heavy duty green 50/50 precharged coolant
    at Napa and also put on a new coolant filter. Will change to red eventually.
     
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