Transmission fluid change

Discussion in 'Gas Engines/Drives/Transmissions/Props' started by menos22, Jul 7, 2018.

  1. menos22

    menos22 Member

    63
    May 26, 2009
    Colonial Beach, VA
    1994 Sea Ray 350 Express Bridge
    Twin 454 Mercruiser With V-Drives
    Want to change the transmission fluid on both Hurth ZF63 iv HSW 630v Transmissions with v-drive. Any recommendations on what is the best fluid to put in. Thanks.
     
  2. fwebster

    fwebster Well-Known Member TECHNICAL Contributor PLATINUM Sponsor

    Oct 6, 2006
    Middle Tennessee ; Panama City Beach, FL
    1996 450DA
    3116 Caterpillars
    electricaldoctor likes this.
  3. northern

    northern Well-Known Member

    Jan 17, 2007
    West coast Vancouver to Alaska
    380 Aft Cabin 1989 GPS and Charts by Nobeltec
    Twin 454 strait shaft
    We have Hurth transmissions. Do not know model. Owners manual said Dextron II can not buy it so got Dextron III seems OK. Change it every 250 hours or once a season provided I put on 100+ hours.
     
  4. menos22

    menos22 Member

    63
    May 26, 2009
    Colonial Beach, VA
    1994 Sea Ray 350 Express Bridge
    Twin 454 Mercruiser With V-Drives
    Thanks guys, will go with the Dextron II or III
     
  5. menos22

    menos22 Member

    63
    May 26, 2009
    Colonial Beach, VA
    1994 Sea Ray 350 Express Bridge
    Twin 454 Mercruiser With V-Drives
    Cant find dextron II or III was told castrol dextron VI was a replacement. Says its compatable with Dextron II and III. Anyone ever use the Dextron Vi.
     
  6. Bt Doctur

    Bt Doctur Well-Known Member

    Aug 21, 2010
    New Jersey
    Ex SRV 240 Weekender twin
    in between
    I believe thats the synthetic version thats compatable
     
  7. CliffA

    CliffA Well-Known Member GOLD Sponsor

    Dec 29, 2009
    Lake Norman, NC
    2001 Sea Ray 340DA
    Name: 'Happy Place'
    4.5kW West. Generator
    Purchased Nov. 2014
    Fresh Water Use
    Twin Merc. 6.2L (MPI)
    Raw Water Cooled
    V-Drive Transmissions
    you can order Dexron II or III from Amazon....that's what I did when I could not find it locally....

    cliff
     
  8. West32

    West32 New Member

    17
    May 24, 2017
    Racine
    1999 Sea Ray 370 EC Hardtop
    Twin Mercruiser 454 Horizon 380 hp
    I called ZF and they recommend Mobil 424 High Performance Tractor Transmission fluid
     
  9. northern

    northern Well-Known Member

    Jan 17, 2007
    West coast Vancouver to Alaska
    380 Aft Cabin 1989 GPS and Charts by Nobeltec
    Twin 454 strait shaft
    I get mine at NAPA or O'Reilly
     

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