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What do you recommend for a '77 IH hydrostatic #4703197
03/22/18 12:12 PM
03/22/18 12:12 PM
Joined: Sep 2004
Posts: 7,820
Marshfield , MA
andyd Offline OP
andyd  Offline OP
Joined: Sep 2004
Posts: 7,820
Marshfield , MA
lawn mower. The original spec was called Hytrans. I used some universal stuff from TSC. Not impressed with the performance. TIA


'16 Camry LE STP synth 0w20 and STP filter. the Fridge

1994 Ranger ,the Rat, 5w30 dino, STP filter

'16 Camry SE, Valvoline HM 0w20 and OEM filter
Thick oil is better grin2
Re: What do you recommend for a '77 IH hydrostatic [Re: andyd] #4703250
03/22/18 01:01 PM
03/22/18 01:01 PM
Joined: Apr 2017
Posts: 25
Indiana
classic70 Offline
classic70  Offline
Joined: Apr 2017
Posts: 25
Indiana
Hytran works good and still available at the CaseIH dealer.


2003 GMC Yukon 5.3 228k
1997 k1500 5.7 225k
1970 GMC C15 5.3 100k
2012 Honda Odyssey 118K
Big Stash
Re: What do you recommend for a '77 IH hydrostatic [Re: andyd] #4703294
03/22/18 01:35 PM
03/22/18 01:35 PM
Joined: Aug 2003
Posts: 11,013
Buffalo, NY
JTK Offline
JTK  Offline
Joined: Aug 2003
Posts: 11,013
Buffalo, NY
The old school units, where the hydrostatic drive and the rear diff have separate lubes, I've seen a single unit recommend anything from 20wt motor oil to ATF. Hytran, universal hydraulic fluid or what ever Tractor Supply or Walmart has on hand is what they normally run.

Today's unitized hydro drive transaxles need heavier motor oil.


2017 Ram 1500 4x4, 3.6L. 2016 Nissan Quest SV (Babe magnet IV)
Re: What do you recommend for a '77 IH hydrostatic [Re: andyd] #4703444
03/22/18 03:43 PM
03/22/18 03:43 PM
Joined: Sep 2004
Posts: 7,820
Marshfield , MA
andyd Offline OP
andyd  Offline OP
Joined: Sep 2004
Posts: 7,820
Marshfield , MA
JTK. A closer look at the parts diagram shows a hydrostatic unit integral to the final drive. They both spec Hy-Tran. There is no break down of the hydrostatic unit. Are they rebuild-able? This is an IH Cadet 80 lawnmower, not some MTD trading on the Cub Cadet mystique. Is there anything I can refresh inside it?


'16 Camry LE STP synth 0w20 and STP filter. the Fridge

1994 Ranger ,the Rat, 5w30 dino, STP filter

'16 Camry SE, Valvoline HM 0w20 and OEM filter
Thick oil is better grin2
Re: What do you recommend for a '77 IH hydrostatic [Re: andyd] #4703580
03/22/18 05:47 PM
03/22/18 05:47 PM
Joined: Dec 2016
Posts: 7,162
Waco, TX
Linctex Offline
Linctex  Offline
Joined: Dec 2016
Posts: 7,162
Waco, TX
Originally Posted By: andyd
original spec was called Hy-Tran.... I used some universal stuff from TSC. Not impressed with the performance.


The two fluid are not even close in comparison.


"The evidence demands a verdict".
(Re:VOA)"it's nearly impossible to actually know the particular additives that are in there at what concentrations."
Re: What do you recommend for a '77 IH hydrostatic [Re: andyd] #4703582
03/22/18 05:48 PM
03/22/18 05:48 PM
Joined: Dec 2016
Posts: 7,162
Waco, TX
Linctex Offline
Linctex  Offline
Joined: Dec 2016
Posts: 7,162
Waco, TX
Many years ago when drag racing 700HP cars with auto trans,

...we always used International Harvester Hy-Tran fluid.

Regular ATF in those days wouldn't stand up to the abuse.


"The evidence demands a verdict".
(Re:VOA)"it's nearly impossible to actually know the particular additives that are in there at what concentrations."

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