4 Comments

  1. Billy Paape says:

    Very helpful and worth the read, thank you for this informative article.

  2. Donald neumann says:

    Put valvoline syn maxlife fluid in my 03 envoy 4.2 eng and developed torque converter shudder. Should I drain and install Delco dexron v1 fluid in its place?.

    1. You can try. But it is a good idea to go local mechanical shop and see what they advise.

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