Power Steering Fluid

Discussion in 'Trucks [ Eighteen Wheelers ]' started by American-Trucker, Jan 28, 2012.

  1. American-Trucker

    American-Trucker Road Train Member

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    2007 379 with a C15, i'm low on Powersteering Fluid, can i just get the stuff in the auto section of the TS or do i need some special stuff for trucks? (note: i dont see power steering fluid on the big truck side of the store)





    American Trucker
     
  2. 98989

    98989 Road Train Member

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    i fill ATF oil (automatic transmission fluid) in both systems
     
  3. 25(2)+2

    25(2)+2 Trucker Forum STAFF Staff Member

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    You don't see anything on the truck side because many fluids can be used, and you should use what is already in the reservoir, be it engine oil, type F transmission fluid, or something else.

    If you have a company shop, call and ask before doing anything.
     
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  4. American-Trucker

    American-Trucker Road Train Member

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    looks like transmission fluid its red and has a very sweet smell to it




    American Trucker
     
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  5. Pablo-UA

    Pablo-UA Road Train Member

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    In 90-s 15w40 oil was recomended, but I use any mineral ATF (dextron) becouse whent it is cold like now here with motor oil in PS I had to turn steering wheel gently from lock to lock twice before start!!!!
     
  6. king Q

    king Q Road Train Member

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    We used to use engine oil15W40 with no issues.
    Now I see our shop has switched to ATF.
    Same stuff you find in the car section.
     
  7. Pablo-UA

    Pablo-UA Road Train Member

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    Hah, it is -22 dgr C here now!
     
  8. JohnP3

    JohnP3 Road Train Member

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    I recommend 15/40 it stays stable at a higher heat than ATF, and you do not need a special, additional fluid in the truck. Some drivers cause a lot of PS problems they are the ones that are always twitching the wheel.
    If the system has ATF and it is burnt, then you want to go to 15/40 if it has ATF and it is bright red leave it alone.
    When ever I had a system apart and drained I always added 15/40, especially when I was changing the PS pump.
     
  9. Diesel Dave

    Diesel Dave Last Few of the OUTLAWS

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    I use strickly Hydraulic fluid. It's non-detergent.
     
  10. rbht

    rbht Heavy Load Member

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    I use hydraulic oil also. No issues.