M59 Discussion Thread

   / M59 Discussion Thread #411  
I use Schaeffer's semi-synthetic blend (green colored, either straight or 50/50 with rotella) in all of my diesels including the M59 for the past 5 years. It works very well, I can feel a power increase and measurable mpg increase when using it that fades away when I don't. Royal purple was the only other oil that came close to the same wear protection on a bearing load tester I watched in person. Even diluted to 50/50 the Schaeffer's still would fill/polish the spots that would grind with everything else. I brought my own oils to compare and if I added Schaeffer's to them they got a lot better quick, which sold me on it. All bottles were sealed & new out of the box, opened by me, so I knew there was no trickery going on at that demo. Not long after that, NAPA started carrying the stuff.

For trans/hyd, I use the universal 5 gallon buckets that say Kubota compatible on top from Costco. Works great.
 
   / M59 Discussion Thread #412  
OK, Mobil 1 turbo diesel in the engine yesterday and the first thing I noticed was that the specs called for 9.9 quarts with a filter change....but it actually only wanted about 9.3 quarts. I overfilled, and ended up pulling some of the extra oil out with a syringe and tiny rubber tube.....The second thing was that upon using it for a day the engine might now be just a touch quieter when cold and definitely quieter later in the day at high revs. The note is slightly different, too. I like it. Surprised that a different oil would make any audible difference.

Going to go for a trans/hydraulic change today. Undecided on which oil and how much to buy. Might even try the SUDT-2. Is that really a synthetic? A blend? Anyone know? And the manual calls for 12.2 gallons with a filter change - which I always do. But based on how much oil must remain in the backhoe and loader cylinders, I think it will require quite a bit less than 12.2 gallons....but by how much?
Anyone know or care to guess just how much less? I'd hate to end up with gallons and gallons of extra SUDT-2.
Thanks,
rScotty
 
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   / M59 Discussion Thread #413  
For trans/hyd, I use the universal 5 gallon buckets that say Kubota compatible on top from Costco. Works great.

Is that Costco's brand on the label, or whose label?
 
   / M59 Discussion Thread #414  
OK, Mobil 1 turbo diesel in the engine yesterday and the first thing I noticed was that the specs called for 9.9 quarts with a filter change....but it actually only wanted about 9.3 quarts. I overfilled, and ended up pulling some of the extra oil out with a syringe and tiny rubber tube.....The second thing was that upon using it for a day the engine might now be just a touch quieter when cold and definitely quieter later in the day at high revs. The note is slightly different, too. I like it. Surprised that a different oil would make any audible difference. Going to go for a trans/hydraulic change today. Undecided on which oil and how much to buy. Might even try the SUDT-2. Is that really a synthetic? A blend? Anyone know? And the manual calls for 12.2 gallons with a filter change - which I always do. But based on how much oil must remain in the backhoe and loader cylinders, I think it will require quite a bit less than 12.2 gallons....but by how much? Anyone know or care to guess just how much less? I'd hate to end up with gallons and gallons of extra SUDT-2. Thanks, rScotty

I did the trans fluid in my 5240 a couple months ago and the book was similar to yours, around 12 gallons (I can't remember the exact amount). I think it used a little over 10 gallons. If you bought two of the 5 gallon buckets it would get you very close and might only need another gallon or less.
 
   / M59 Discussion Thread #415  
I've been using Delvac-1 by Mobil in all of my diesels for yrs. Local auto supply doesn't stock it any more, just the Mobil-1 for diesels. So I've switched, looks the same engine sounds the same. I think it's the same.

For Hydro oil I use what my local Hydraulic Shop has. Same spec's as John Deere Hy Guard Low visc. but $25.00 less for 5-gal bucket. $60 vers 85. Looks the same.

David
 
   / M59 Discussion Thread #416  
I did the trans fluid in my 5240 a couple months ago and the book was similar to yours, around 12 gallons (I can't remember the exact amount). I think it used a little over 10 gallons. If you bought two of the 5 gallon buckets it would get you very close and might only need another gallon or less.

Well, mine turned out to use more. And after much wallet-searching I did go get the SUDT2. BTW, buying SUDT2 in the form of a case of quarts is almost 25% less expensive than buying it in larger containers. Easier to handle too. Unsettlingly, the oil in the quarts was very transparent and colorless where the same SUDT2 oil bought at the same time but in the form of a box of 2.5 gallon SUDT2 containers had a very slight amber hue. Not much, but enough to notice. The 2.5 gallon oil bubbled more when being poured in as well. That was more obvious than the color difference. Wonder why??

My original M59 operator's manual said the hydraulic capacity was 12.2 gallons..., so figuring there must be some oil left in the cylinders I only bought 10.5 gallons of SUDT2. That mistake marked the first of consecuative visits to my friendly Kubota dealer. After having found and drained via all three drain plugs just as the manual shows, and with the 3 new filters, the refill quantity required finally turned out to be exactly 12.2 gallons to the upper mark on the dipstick.....just as the manual said. That's measured with the dipstick fully inserted and with the loader down, bucket curled, and the backhoe in transport positon.

Hint 1: The SUDT2 is a nearly colorless clear oil, and heat-coloring the dipstick last time I did this chore sure has made it easier to tell the level.

Hint 2: Getting those filters on & off with a strap wrench is a terrible challenge. It's notat all as easy as replacing the engine oil filter. Next time we will take the time to prepare in advance by getting the proper oil filter socket for the two hydraulic filters and the proper spanner to fit the slots in the transmission filter.

And finally....is there an observable difference after going to the new - and more expensive oils?
From 15w-40 Rotella T to Mobil 1 Turbo Diesel in the engine....and New Holland Multi G 134 trans/hydo to Kubota SUDT2?
Well, honestly I can't tell any audible or operating difference so far. I changed mainly because the new oils are rated as being better for cold weather starts. Winter temps here can easily hit -20F and sometimes colder. And those are times when you really need a tractor....and a cab! @#$! Anyway, we'll know more when cold weather happens.

Other filters: I pre-filter the fuel, and don't use the bottom of the fuel container, so there has been no reason to ever change the M59 fuel filter. I did it one at 500 hourts but it looked new. And it still looks fine.
Conversely, the outer air filter quickly becomes colored black from exhaust fumes. Apparently that's because the air intake is only a couple of feet from the exhaust pipe.....making me wonder if that was intentional? Anyway, it makes interpreting the state of the outer air filter by color quite difficult.

As always, we remember that Good Luck beats Good Planning....
luck to you, rScotty
 
   / M59 Discussion Thread #417  
I didn't notice any changes with the new fluid, I think the big upgrade is cold weather use because it has a lighter cold weight. I think I have changed fluid in mine a total of 4 times now. The last 2 changes with sudt2. It really is clear fluid, dificult to see on dipstick. And BTW, I don't think it matters what position you leave your loader or backhoe to check fluid level. When fluid leaves one side of a cylinder, an equal amount goes in the other side.
 
   / M59 Discussion Thread #418  
I think I have changed fluid in mine a total of 4 times now. The last 2 changes with sudt2. It really is clear fluid, dificult to see on dipstick.

In the sunlight I couldn't see the fluid on the dipstick well enough to tell the level. So I took the dipstick inside, cleaned it up, and blued the end of it in the flame of the kitchen stove burner.

If you're not familiar with the technique it's easy enough to learn. Just do the bottom inch or two. Mine is now blue at the lower tip tapering to a straw color up where the high/low hash marks are. Go slow to retain as much springiness as possible. I polished it up a couple of times and re-did it until it looked right. Again, go slow. It's not necessary to fry the metal to cause a color change.

As an aside, just like the metal everywhere on the Kubota M59, even the dipstick is an excellent steel. Mine took a beautiful gunmetal blue with no surface flaking, oxidation, or wrinkling.

If heating it is a bother, I bet the dipstick end could be blued just as well with some of the cold-blueing solution that gunsmiths use.
 
   / M59 Discussion Thread #419  
Do any of you M59 owners have a service manual? If so, would you be so kind as to look up the hydraulic pressure that the M59 puts out for implements? I've tried finding this online but only seem to come up with the hydraulic flow of 16gpm, but can't find the pressure anywhere, and without both numbers, it's hard to really figure anything out regarding hydraulic power available to run implements.

Also, anyone have any secret information about the M59's replacement? The M62.
 
   / M59 Discussion Thread #420  
Do any of you M59 owners have a service manual? If so, would you be so kind as to look up the hydraulic pressure that the M59 puts out for implements? I've tried finding this online but only seem to come up with the hydraulic flow of 16gpm, but can't find the pressure anywhere, and without both numbers, it's hard to really figure anything out regarding hydraulic power available to run implements.

Also, anyone have any secret information about the M59's replacement? The M62.
 

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