20W50 in Hydraulic Sysytem?

Discussion in 'Lawn Mowing Equipment' started by Scott Burrows, Apr 28, 2019.

  1. Scott Burrows

    Scott Burrows LawnSite Member
    Messages: 61

    My new Scag TTII has HG and Parker drives. It specifically says to use 20W50 motor oil.

    I find this hard to accept since nearly everything these days has gone to synthetic. My Exmark was very specific about using synthetic and it is 18 years old. Just want to confirm that others are using dino in their HG/Parker drives.
     
  2. dieselss

    dieselss LawnSite Silver Member
    from NWI....
    Messages: 2,490

    You think you cant get 20w50 in full synthetic?
     
  3. OP
    OP
    Scott Burrows

    Scott Burrows LawnSite Member
    Messages: 61

    No there are plenty of full synthetic 20W50's out there. I'm just inquiring to see if others are using regular motor oil and not synthetic.
     
  4. Walker56

    Walker56 LawnSite Fanatic
    Messages: 13,719

    Scag is advertising it as “ease of maintenance cost vs Synthetic “ to save the owner money. For the cost difference, and it is not changed that frequently, put synthetic in and go mowing.
     
  5. dieselss

    dieselss LawnSite Silver Member
    from NWI....
    Messages: 2,490

    They are referring to synthetic hydraulic oil.
     
  6. OP
    OP
    Scott Burrows

    Scott Burrows LawnSite Member
    Messages: 61

    That's kind of what I was thinking.
     
  7. OP
    OP
    Scott Burrows

    Scott Burrows LawnSite Member
    Messages: 61

    Not really.
     
  8. Walker56

    Walker56 LawnSite Fanatic
    Messages: 13,719

    Doc8406 likes this.
  9. OP
    OP
    Scott Burrows

    Scott Burrows LawnSite Member
    Messages: 61

    I have been using synthetics in all aluminum and air cooled engines for years. I would consider synthetic to be an upgrade. I'm just wondering if there is a warranty issue. It doesn't spec a specific brand like some manufacturers do. My Exmark spec'd Mobil 1 15W50.
     
  10. Walker56

    Walker56 LawnSite Fanatic
    Messages: 13,719

    They are only suggesting reg oil to save on mtce costs. If you are that concerned, call
    Scag at (920) 387-3150. There will not be any warranty issues.
     
    Ridin' Green, bmc1025 and hort101 like this.

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