Author Topic: Hydraulic fluid in a 4 post lift  (Read 473 times)

Warren Seale

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Hydraulic fluid in a 4 post lift
« on: November 14, 2013, 11:37:48 AM »
I'm looking to find our how often the hydraulic fluid needs to be changed in home lifts.  I know it doesn't get the same environmental abuse like brake fluid gets but one of my two lifts is nearly 15years old now and it has the original fluid from when it was installed.   Does anyone here have some advise?



Warren
79 T/A,WS6,403,A3
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wld79TA

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Re: Hydraulic fluid in a 4 post lift
« Reply #1 on: November 14, 2013, 12:06:30 PM »
First of all, what brand lifts do you have.

I spoke to the guys at Gregsmith and  I was told that with typical "home" use that it would last as long as it in use.
1979 Y84 Trans Am... in the middle of a deep restoration.
1987 Buick Grand National - Vader

BlueTTA

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Re: Hydraulic fluid in a 4 post lift
« Reply #2 on: November 14, 2013, 03:01:51 PM »
Mine uses regular automatic transmission fluid and it should last forever without ever having to change it.  Even if you use your lift twice a day everyday.
So at 2 mins X 2 X 365 days = 1460 mins a year.  1460/60 = 24.33 hours a year.  (one day a year)

Even if you change your ATF every 50,000 miles in your car, it would take at least 50,000 mins to equal that time (833.33 hours) 
833 / 24 = 34.71 years. 

So if my math is correct, and you raise and lower your lift twice a day (lowering the lift doesn't really count if you ask me), then its still going to take nearly 35 years to get the equivalent usage out of the fluid as you would driving it 50K miles.   And I don't know about you, but my lift only gets used on the weekends, if then.  So in another 50 or so years, I wont be able to remember how to use the thing anyway.   :lol:
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Chris
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wld79TA

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Re: Hydraulic fluid in a 4 post lift
« Reply #3 on: November 14, 2013, 04:03:26 PM »
Mine uses regular automatic transmission fluid and it should last forever without ever having to change it.  Even if you use your lift twice a day everyday.
So at 2 mins X 2 X 365 days = 1460 mins a year.  1460/60 = 24.33 hours a year.  (one day a year)

Even if you change your ATF every 50,000 miles in your car, it would take at least 50,000 mins to equal that time (833.33 hours) 
833 / 24 = 34.71 years. 

So if my math is correct, and you raise and lower your lift twice a day (lowering the lift doesn't really count if you ask me), then its still going to take nearly 35 years to get the equivalent usage out of the fluid as you would driving it 50K miles.   And I don't know about you, but my lift only gets used on the weekends, if then.  So in another 50 or so years, I wont be able to remember how to use the thing anyway.   :lol:

 :lol: :lol: :lol: :lol: :lol:
1979 Y84 Trans Am... in the middle of a deep restoration.
1987 Buick Grand National - Vader

tajoe

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Re: Hydraulic fluid in a 4 post lift
« Reply #4 on: November 14, 2013, 07:17:05 PM »
I've got a 50s hyd. floor jack, and far as I know, the fluids never been changed. (But hey...that's just me)
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LeighP

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Re: Hydraulic fluid in a 4 post lift
« Reply #5 on: November 14, 2013, 09:57:54 PM »
Check with the manufacturer, or the manual...but frankly, I wouldn't worry about it.  :grin:
Regards,
Leigh

Sydney, Australia
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Re: Hydraulic fluid in a 4 post lift
« Reply #5 on: November 14, 2013, 09:57:54 PM »
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