hydro pump oil ?

Discussion in 'Mechanic and Repair' started by robbo521, May 25, 2007.

  1. robbo521

    robbo521 LawnSite Senior Member
    Messages: 601

    its time to change mine and i would like to here what some are useing please.
  2. LawnSharks

    LawnSharks LawnSite Senior Member
    Messages: 300

    We use ONLY Mobil 1 15w50 and have never had any hydro issues or problems.
  3. ALBsun1

    ALBsun1 LawnSite Member
    Messages: 114

    how often should you change your hydro oil? i have a 36" exmark hydro, have had it for almost two years and have never had the oil changed. seems to work just as well as the day i bought it.
  4. Ironic

    Ironic LawnSite Senior Member
    Messages: 353

    I think exmark says that it never needs to be changed, unless you've had a component failure, or it's been contaminated with water or dirt or whatever.
  5. fixer67

    fixer67 LawnSite Silver Member
    Messages: 2,098

    That is only half a question. What is the machine you are talking about? It could be any thing from ATF to 20W50. Be like the man I know that put John Deere Hydro fluid (thick as honey) in his log splitter and burned the pump up. Turns out the log splitter was meant to use Dextron III ATF (automatic transmission fluid). So you need to say what it goes it.
  6. DLCS

    DLCS LawnSite Platinum Member
    Messages: 4,386

    I use the JD plus 50 in all my z traks. i believe thats what yours should use but check your manual. You can use other brands but I fould its only a few dollars more. I buy mine by the 5 gallon bucket bigger savings.
  7. robbo521

    robbo521 LawnSite Senior Member
    Messages: 601

    thanks,its going in a JD ztrac.
  8. mini14

    mini14 LawnSite Member
    Messages: 236

    Mobil 1 15-50, hours of trouble free service.
  9. jkingrph

    jkingrph LawnSite Senior Member
    Messages: 812

    Casstrol 20w50 as Scag specifies a 20w50.
  10. Roger

    Roger LawnSite Fanatic
    Messages: 5,943

    I bought my JD 717A Z-trak last May. In late December, I went to change the hydro oil and filter. After reading the manual, I discovered the manual suggests a JD oil that does not exist. I can't remember the details now, but the weight of the oil was not available in the kind of oil suggested. There was a thread on this topic, probably in December 2006 or January 2007.

    After discussing with the dealer, I used Amsoil 15-40 to replace the fluid that came with the new machine. After two months of use this season, all seems to be well. I bought the Amsoil at a NAPA parts store.

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