Mercury Optimax 115, 135, 150, 175, DFI year 2000 and up service manual., Page 416Get this manual
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POWER TRIMDESIGN I
1 Fill system with Quicksilver Power Trim and Steering Fluid or Automatic Transmission Fluid (ATF) Type F,FA, Dexron II or Dexron IIIRefer to "Fill, Check, and Purge" on page