Hydraulic oil

Even if it has no TA it should have lighter oil than 90 weight if it has hydraulics and power steering. The 90 oil won't go through the filter for the two pumps to work right.
 
I'm not sure other posters understood your question. 303 is hydraulic oil not 90 wt. I use 303 in my 560 and has worked fine. If you read the specs it says tractors after 1974 need a different oil. 303 was the hydraulic oil of choice for JDs in 10 and 20 series. I think Hy Tran probably has more additives but is probably more than double the price of 303y
 
Isn't the hydraulic system separate from transmission and rearend on a 560? I thought the 560 and 450 had the same transmission and rear end and if TA delete you can run 90 weight. You would only need the hy-trans oil if you have a TA.
 
303 is a generic transmission hydraulic fluid, it has a lot less additives than the current version of Hytran. But it may match what passed for "Hytran" back in the late 1950s and early 1960s. The Hytran fluid evolved as the transmissions and hydraulic pumps evolved. I might use it in a 560/460 but probably not in any large frame tractor.
 
Hydraulic and rear end oil is the same on 460, 560, and 660 models. Rear end and hydraulic are not separate like older models were. There's a filter on the right side, hydraulic pumps are under the plate on the left side of the clutch/TA housing. There's a tube from the filter to the rear end that's the pump/filter supply inlet tube.
 
Here is an old post about what you are asking.
https://www.yesterdaystractors.com/cgi-bin/viewit.cgi?bd=farmall&th=877358

I looked up 3 websites with 303 oil. For sure 2 of them said not to use their 303 below 32F.
It is with the TA that you run into difficulties with too thick oil in cold weather.
 
Regarding my last question ,
The hydraulic oil that is in my tractor is milky looking with water . What is the best way to flush /clean that out ?
Can I flush it out with diesel fuel or is that bad for the TA, pump , seals ?
 
that would all depend on how hard you are working the tractor. a hard pulling working tractor will need hytran. puttzing around doing chores the other oil is" good enough".
 
NO! 303 is the OLD Deere oil from the 1960's, used on last 2-cylinders and early New Generation
tractors, -10 and early -20 series.

303 spec oils not compatable AT ALL with Hy-Tran. Hy-Tran absorbs 1-2% water, 303 spec oil holds water
oil below the oil. Water causes rust, can freeze causing BIG problems.
 
NO! Saying 450 & 560 rearends are the same is laughably WRONG. 460/560 always used transmission & final drive housing as hyd system reservoir, shared oil. 300/350/400/450 NEVER did. Hyd and rearend always totally separate.

You are confusing the final drive bearing issues IH had with some 460/560 that caused the rework circus. About 10% had issues but IH reworked them all, or attempted to. IH actually first noticed the problem on Super M, SM-TA, 400/450, but fixed it on 460/560. The '57 450 Dad had from spring '65 to spring '69 had pinion bearings fail in about '67 and '68, left side first, right side last. Only about a 2-3 hour repair per side.
 
303 is not "the same as HyTran." Not even close. 303 hydraulic oil is banned in at least two states now, Missouri and Georgia.

Not that a particular brand, or all types, of 303 are bad, but because the standard is obsolete and there is no way to test the oil to prove that it meets that standard. 303 can literally be any wet slippery puke that the packager decides to put in the bucket.

Does a 560 or any IH tractor of that era need genuine Hytran Ultraction? Absolutely not.

There are plenty of cheaper alternatives that state right on the bucket that they meet HyTran MS1209 standards. 303 does not. 303 does not meet ANY standard.
 
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