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#4536947 - 10/08/17 09:44 AM Changing Hydraulic floor jack oil?
maverickfhs Offline


Registered: 12/28/16
Posts: 2010
Loc: VA
How often that should be done? Never or maybe once after every 5 years?

Also, can ATF or PS fluid be used for it? I don't have any hydraulic jack oil laying around.

Any other kind of motor oil, like any 10W or anything similar be used?

Thanks for your help and advice.
_________________________
2006 Civic EX 200K/AT
2006 Acura TSX 177K/AT

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#4536968 - 10/08/17 10:14 AM Re: Changing Hydraulic floor jack oil? [Re: maverickfhs]
danez_yoda Offline


Registered: 07/18/09
Posts: 467
Loc: texas
If you have a cheapie I would just wait until it fails then get a new jack. Otherwise wait until the seals start leaking then change the oil and seals at the same time.

My old cheapie $25 "big Mac 2 ton" jack is 17 years old and still has the original oil. I never added or needed a drop. I used it 4-5 times a year for oil changes and infrequent other maintenance. I relieved it with a $65 quick pump aluminum floor jack from Harbor Freight. I ALWAYS use jackstands so a failing jack is not a safety concern. if it fails after you are on the jackstands you could use the factory spare tire jack to get it down. PITA but works in a pinch.





Edited by danez_yoda (10/08/17 10:14 AM)

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#4536983 - 10/08/17 10:23 AM Re: Changing Hydraulic floor jack oil? [Re: maverickfhs]
fozzdesy2001 Offline


Registered: 11/22/13
Posts: 60
Loc: York, Pa
Originally Posted By: maverickfhs
How often that should be done? Never or maybe once after every 5 years?

Also, can ATF or PS fluid be used for it? I don't have any hydraulic jack oil laying around.

Any other kind of motor oil, like any 10W or anything similar be used?

Thanks for your help and advice.


I'm curious about this as well because I recently resurrected an old bottle jack with a bad oil ring that let its oil spew out while pumping. I also did not have any hydraulic jack oil so I used 10-30 motor oil. The jack works like it should no leaks, solid pumps with no leak down. What little of the remaining old oil was coal black water thin, so now it has a full belly of AAP house brand super sale special oil motor oil I had on hand. Can I leave it or should I change it out for real hydraulic jack oil?
_________________________
2001 Subaru Forester S
Replaced with a 2006 Forester

2004 Subaru Forester XT
Death by deer. Replaced with 2003 Impreza Outback Sport (beater)

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#4537291 - 10/08/17 03:50 PM Re: Changing Hydraulic floor jack oil? [Re: maverickfhs]
Kuato Offline


Registered: 10/23/05
Posts: 7094
Loc: Colorado
Maybe if a seal fails, change oil along with seals. Otherwise, never.
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Thick vs Thin test: 15k / 43k miles complete

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#4537307 - 10/08/17 04:00 PM Re: Changing Hydraulic floor jack oil? [Re: maverickfhs]
Mackelroy Offline


Registered: 12/03/04
Posts: 1006
Loc: Florida /Texas
Never

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#4537481 - 10/08/17 08:12 PM Re: Changing Hydraulic floor jack oil? [Re: maverickfhs]
maverickfhs Offline


Registered: 12/28/16
Posts: 2010
Loc: VA
Sounds good. Thanks guys.
_________________________
2006 Civic EX 200K/AT
2006 Acura TSX 177K/AT

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#4537534 - 10/08/17 09:19 PM Re: Changing Hydraulic floor jack oil? [Re: maverickfhs]
motor_oil_madman Offline


Registered: 11/29/09
Posts: 4860
Loc: Houston, Texas
There is no reason to change the oil in a floor Jack. Check the level? Yes
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2007.5 dodge cummins 6.7 liter. Chevron Delo400 15w40. 7000 mile or 250-300hr intervals.


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#4537657 - 10/09/17 05:32 AM Re: Changing Hydraulic floor jack oil? [Re: maverickfhs]
Lubener Offline


Registered: 01/22/11
Posts: 2577
Loc: N.Ohio
I never change the fluid in any of my floor jacks.
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#4544221 - 10/15/17 04:42 PM Re: Changing Hydraulic floor jack oil? [Re: maverickfhs]
MolaKule Offline


Registered: 06/05/02
Posts: 19042
Loc: Iowegia - USA
Do check the oil, especially in those bottle jacks that had the "stopper" near the top because if it ever tips over, they can and do leak.

My observation is that FJ seals leak because of low usage.

In fact, I put a drop of ATF on all the externally exposed seals to keep them wet and pliable.

Low Viscosity ATF such as Dexron VI is great as a FJ oil especially when have to work in the cold.


Edited by MolaKule (10/15/17 04:43 PM)

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#4571958 - 11/12/17 03:43 PM Re: Changing Hydraulic floor jack oil? [Re: maverickfhs]
hiflo Offline


Registered: 07/07/15
Posts: 20
Loc: mississippi
napa hydraulic jack oil part # NCB 1541 works for me

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#4611811 - 12/23/17 05:15 AM Re: Changing Hydraulic floor jack oil? [Re: maverickfhs]
Lubener Offline


Registered: 01/22/11
Posts: 2577
Loc: N.Ohio
Never changed mine and never will. Unless the jack won't lift or slowly sinks, there's no real reason to check the oil.


Edited by Lubener (12/23/17 05:17 AM)
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