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Super M Tranny Oil

J

jeffalex2

Member
I want to change the oil in my '53 Super M, but, according to tractor data, the capacity is 52 quarts...am I really going to have to buy $175 worth of gear oil to do this?
 
OK...Thanks...just checking. It'll be the most expensive oil change I've ever done. But i'm gonna swap out that leaky pto seal first!
 
Holy cow Im about to tackle this on a 52 I had no idea it was 13 gallons. Im gonna have to finance gear oil. What is the best brand ?

Larry O
 
I buy 80W90 from Napa in 5 gallon buckets. If you are running a trailer queen or don't work it really hard (meaning plowing or disc work) you can go with the best price you can find. If you are going to work it hard, I would go with Napa or a name brand.

Napa's price is around $56 per 5 gallon bucket (my price).
 
85/140 was 12.64 a gallon in 5 gal containers at Walmart in June -- that is about as cheap as it gets unless you can find a sale.
 
This is good information and have two H's I want to refresh ... to include new axle seals.

What I have found so far:

Everyone carries about the same price. I've tried tsc .. wallyworld .. napa .. other various auto parts and tire stores. They will not negotiate any bulk price either.

After a year of "watching out for" I am going to settle for napa. Known quality and they offer the 5 gallon bucket for only all about the same price. It's worth a buck a gallon more for me to avoid walmart.
 
Just think though, you can put over 40 gals of hy tran in a 50 series IH or Case IH magnum and it costs about the same as your heavy gear lubes.
 
(quoted from post at 10:32:01 10/10/11) Just think though, you can put over 40 gals of hy tran in a 50 series IH or Case IH magnum and it costs about the same as your heavy gear lubes.
Click to expand...

I would put it in my letter series...let the yelling begin. It is good for a SMTA but not a SM??? Hmm...
 
(quoted from post at 18:58:25 10/10/11)

I would put it in my letter series...let the yelling begin. It is good for a SMTA but not a SM??? Hmm...
Click to expand...

Lubrication wise there is no problem with running Hy-Tran in the SM. The SMTA needs it because of the TA. They do not function well with 90 weight lube oil.

Hy-Tran tends to leak easier out of worn oil seals. The transmission on the SM has no transmission brake so shifting may be more of a problem because it takes longer for the gears to spool down when the clutch is released.
 
(quoted from post at 16:23:56 10/10/11)
(quoted from post at 18:58:25 10/10/11)

I would put it in my letter series...let the yelling begin. It is good for a SMTA but not a SM??? Hmm...
Click to expand...

Lubrication wise there is no problem with running Hy-Tran in the SM. The SMTA needs it because of the TA. They do not function well with 90 weight lube oil.

Hy-Tran tends to leak easier out of worn oil seals. The transmission on the SM has no transmission brake so shifting may be more of a problem because it takes longer for the gears to spool down when the clutch is released.
Click to expand...

Where is the transmission brake part and how does it work? I haven't been into my SMTA (for now...) but I wasn't aware of a brake. You are the first person that has been able to give a reason that hytran won't work other than, "it is for TA tractors and SMs don't have one." I could swap just about every single part in my SMTA with an M, SM, 400, 450 so I could never figure out why hytran could hurt an older tractor. I may agree on the seal thing, but eventually liquids tend to leak no matter what the liquid is.
 
(quoted from post at 23:14:24 10/10/11)

Where is the transmission brake part and how does it work? I haven't been into my SMTA (for now...) but I wasn't aware of a brake. You are the first person that has been able to give a reason that hytran won't work other than, "it is for TA tractors and SMs don't have one." I could swap just about every single part in my SMTA with an M, SM, 400, 450 so I could never figure out why hytran could hurt an older tractor. I may agree on the seal thing, but eventually liquids tend to leak no matter what the liquid is.
Click to expand...

You've got to get to a 706 or larger tractor to have a transmission brake.

With the release of HY-Tran it also became the recommended lube for the older tractors replacing the 90 weight lube oil. There is no harm in using it, it just has some disadvantages compared to the heavier oil.

Something else you may run into with Hy-Tran is gear rattle at low idle when the transmission is in neutral. The crankshaft speeds up each time a cylinder fires and then slows down again until the next cylinder fires. This uneven speed can cause noise with the thinner oil because of the back lash in the transmission gears. A thicker coating of because of higher viscosity will cushion the gears a little better.
 
Thanks Owen. You have been the only person to ever give a real answer to that question. In my mind hytran would cling better and cover more than gear lube. I will certainly put it in my SMTA when it gets split and try it in one of the other tractors if I have to.
 
(quoted from post at 04:39:16 10/11/11) Thanks Owen. You have been the only person to ever give a real answer to that question. In my mind hytran would cling better and cover more than gear lube. I will certainly put it in my SMTA when it gets split and try it in one of the other tractors if I have to.
Click to expand...

Gear oil will stick better in a way, but also too much of a good thing is bad. Heavy oils don't sling well, and them old Farmall gears rely on slinging. Particularly bad case is if the tranny has a trough to feed slinger oil back to the ring/pinion. IH used that technique on a lot of machines up until the late fifties. It can take minutes to get effective flow. Heavy stuff like 140 is to be avoided in my opinion.
 
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