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Changing Hydraulic floor jack oil? #4536947
10/08/17 09:44 AM
10/08/17 09:44 AM
Joined: Dec 2016
Posts: 2,163
VA
maverickfhs Offline OP
maverickfhs  Offline OP
Joined: Dec 2016
Posts: 2,163
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 202K/AT
2006 Acura TSX 180K/AT
Re: Changing Hydraulic floor jack oil? [Re: maverickfhs] #4536968
10/08/17 10:14 AM
10/08/17 10:14 AM
Joined: Jul 2009
Posts: 599
texas
danez_yoda Online content
danez_yoda  Online Content
Joined: Jul 2009
Posts: 599
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.




Last edited by danez_yoda; 10/08/17 10:14 AM.
Re: Changing Hydraulic floor jack oil? [Re: maverickfhs] #4536983
10/08/17 10:23 AM
10/08/17 10:23 AM
Joined: Nov 2013
Posts: 64
York, Pa
fozzdesy2001 Offline
fozzdesy2001  Offline
Joined: Nov 2013
Posts: 64
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)
Re: Changing Hydraulic floor jack oil? [Re: maverickfhs] #4537291
10/08/17 03:50 PM
10/08/17 03:50 PM
Joined: Oct 2005
Posts: 7,094
Colorado
Kuato Offline
Kuato  Offline
Joined: Oct 2005
Posts: 7,094
Colorado
Maybe if a seal fails, change oil along with seals. Otherwise, never.


Thick vs Thin test: 15k / 43k miles complete
Re: Changing Hydraulic floor jack oil? [Re: maverickfhs] #4537307
10/08/17 04:00 PM
10/08/17 04:00 PM
Joined: Dec 2004
Posts: 1,016
Florida /Texas
Mackelroy Offline
Mackelroy  Offline
Joined: Dec 2004
Posts: 1,016
Florida /Texas
Never

Re: Changing Hydraulic floor jack oil? [Re: maverickfhs] #4537481
10/08/17 08:12 PM
10/08/17 08:12 PM
Joined: Dec 2016
Posts: 2,163
VA
maverickfhs Offline OP
maverickfhs  Offline OP
Joined: Dec 2016
Posts: 2,163
VA
Sounds good. Thanks guys.


2006 Civic EX 202K/AT
2006 Acura TSX 180K/AT
Re: Changing Hydraulic floor jack oil? [Re: maverickfhs] #4537534
10/08/17 09:19 PM
10/08/17 09:19 PM
Joined: Nov 2009
Posts: 4,942
Houston, Texas
motor_oil_madman Offline
motor_oil_madman  Offline
Joined: Nov 2009
Posts: 4,942
Houston, Texas
There is no reason to change the oil in a floor Jack. Check the level? Yes


2007.5 dodge cummins 6.7 liter. Chevron Delo400 15w40. 7000 mile or 250-300hr intervals.

Re: Changing Hydraulic floor jack oil? [Re: maverickfhs] #4537657
10/09/17 05:32 AM
10/09/17 05:32 AM
Joined: Jan 2011
Posts: 2,718
N.Ohio
Lubener Offline
Lubener  Offline
Joined: Jan 2011
Posts: 2,718
N.Ohio
I never change the fluid in any of my floor jacks.


The "thinking" man's friend.
Re: Changing Hydraulic floor jack oil? [Re: maverickfhs] #4544221
10/15/17 04:42 PM
10/15/17 04:42 PM
Joined: Jun 2002
Posts: 19,235
Iowegia - USA
MolaKule Offline
MolaKule  Offline
Joined: Jun 2002
Posts: 19,235
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.

Last edited by MolaKule; 10/15/17 04:43 PM.

Reading is fundamental; understanding is not a given ability.
Re: Changing Hydraulic floor jack oil? [Re: maverickfhs] #4571958
11/12/17 04:43 PM
11/12/17 04:43 PM
Joined: Jul 2015
Posts: 20
mississippi
hiflo Offline
hiflo  Offline
Joined: Jul 2015
Posts: 20
mississippi
napa hydraulic jack oil part # NCB 1541 works for me

Re: Changing Hydraulic floor jack oil? [Re: maverickfhs] #4611811
12/23/17 06:15 AM
12/23/17 06:15 AM
Joined: Jan 2011
Posts: 2,718
N.Ohio
Lubener Offline
Lubener  Offline
Joined: Jan 2011
Posts: 2,718
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.

Last edited by Lubener; 12/23/17 06:17 AM.

The "thinking" man's friend.
Re: Changing Hydraulic floor jack oil? [Re: maverickfhs] #4836685
08/10/18 06:52 PM
08/10/18 06:52 PM
Joined: Mar 2010
Posts: 1,406
USA
SOHCman Offline
SOHCman  Offline
Joined: Mar 2010
Posts: 1,406
USA
I drained and refilled a 2.5 ton jack with maxlife LV ATF as an experiment and it's still working fine about 7 years later now. The only difference I notice with an identical jack with factory fluid in it still doesn't have as firm of a pumping feel as the jack with ATF, so it must be lower viscosity than the LV ATF I would guess.


I urge people not to wait 100K to change out the fluid in their transfer case units. -Kestas
Re: Changing Hydraulic floor jack oil? [Re: maverickfhs] #4861587
09/06/18 04:23 PM
09/06/18 04:23 PM
Joined: May 2014
Posts: 3,667
Columbus,Nebraska
Yah-Tah-Hey Offline
Yah-Tah-Hey  Offline
Joined: May 2014
Posts: 3,667
Columbus,Nebraska
Changed the oil in my thirty five year old Craftsman 2 ton this morning. Have been replacing oil every two years since new. Suction out 2 1/8 ounces with Mityvac I've had for years and replace like amount using old Three In One applicator and small piece of clear tubing. Anymore than 2 1/8 ounces and oil will weep from plug until proper level is reached.FACT: No matter how many sections of newspaper one puts down to catch spill, oil will still find way to bare floor. Murphy is alive and well.


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