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Equivalent? #5344095 02/07/20 08:48 PM
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puma4440 Offline OP
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Hello all,

I've searched and didn't come up with anything...

I'm restoring a 1969 Sears Suburban SS12 garden tractor, and the manual calls for 30w non-detergent lubricating oil for the transaxle, I can find it in Traveller brand, but was wondering if with today's lubricants, if something better exists?

A little info, I'm running dual tires loaded with RV antifreeze and wheel weights, its primarily a snow, dirt, and gravel pusher, but I do run it in all temperatures from -15 F to 90 F.

I've also considered using an additive like liqui-moly gear friction reducer.

Thoughts?

Thanks,
puma4440

Re: Equivalent? [Re: puma4440] #5344103 02/07/20 08:56 PM
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walterjay Offline
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I would just use the 30 non detergent. It meets spec.

Re: Equivalent? [Re: puma4440] #5344125 02/07/20 09:22 PM
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rubberchicken Offline
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What about a 30w GL4 ?

Re: Equivalent? [Re: rubberchicken] #5344129 02/07/20 09:26 PM
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puma4440 Offline OP
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Originally Posted by rubberchicken
What about a 30w GL4 ?


I'm a noob here, what brand/type would I be looking at?

Re: Equivalent? [Re: puma4440] #5344149 02/07/20 09:51 PM
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Donald Online Content
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Originally Posted by puma4440
Hello all,

I've searched and didn't come up with anything...

I'm restoring a 1969 Sears Suburban SS12 garden tractor, and the manual calls for 30w non-detergent lubricating oil for the transaxle, I can find it in Traveller brand, but was wondering if with today's lubricants, if something better exists?

A little info, I'm running dual tires loaded with RV antifreeze and wheel weights, its primarily a snow, dirt, and gravel pusher, but I do run it in all temperatures from -15 F to 90 F.

I've also considered using an additive like liqui-moly gear friction reducer.

Thoughts?

Thanks,
puma4440


Was it blue. My Dad had one for his nursery. Manual start. He made this small holder for weights and bolted it in the back where you would attach something and had 2 QT size round oil cans filled with lead.

I do not think it was ever good at pushing snow or dirt. I think they also had a snow blower. In the end most of the time it was used to pull a wagon around that was filled with trees we were transplanting from one place to another.

Last edited by Donald; 02/07/20 09:51 PM.

2015 Ford F-250 w/Powerstroke
2016 Subaru Crosstrek CVT (wife's)
Re: Equivalent? [Re: puma4440] #5344159 02/07/20 10:06 PM
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fozzdesy2001 Offline
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Use whatever name brand you can find Traveller oil is good, some even use gear oil in the transmission. The old Suburbans aren't too fussy about oil but refilling the tranny can be a pain. That's a LOT of added weight! hope you have good breaks and never have to push it because it won't start


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Re: Equivalent? [Re: puma4440] #5344168 02/07/20 10:19 PM
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puma4440 Offline OP
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I think the st16 was blue, depends on the year too.

As far as brakes, I put new brake liner on it. I'm running 2 sets of ag tires on the rear with a combined 24 gallons of antifreeze plus the wheel weights are 30 lbs each. On the tires, I have 2 sets of 2 link v-bar chains, I haven't had an issue in the past pushing or pulling anything.

Re: Equivalent? [Re: puma4440] #5344248 02/08/20 02:45 AM
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zeng Offline
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Transaxle is a gear box/ transmission .
Gear oil is far more suitable than non-detergent oil or engine oil as it is dedicated oil .
GL5 if there is no synchromesh .GL4 if there is synchromesh.
Now, at what viscosity grade ?
SAE 30 has KV40 of about 100 cSt .
I would prefer 80W90 GL5/4 of typical KV40 of 150 cSt over a 75W90 GL5/GL4 of typical KV40 of about 100 cSt

Re: Equivalent? [Re: puma4440] #5344294 02/08/20 05:47 AM
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Olas Offline
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75w90 is the same viscosity as 10w40 - as a guess I'd say that 70w80 is equivalent to a 5/10w30.

look for a 70w80 GL4 from a brand you trust.


Cable ties should hold it
Re: Equivalent? [Re: puma4440] #5344326 02/08/20 07:12 AM
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ASE L1, Master. Deutsch Meisterbrief.
Re: Equivalent? [Re: puma4440] #5345164 02/09/20 09:06 AM
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MolaKule Offline
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I had a 1965 Sears Garden tractor and mowed, seeded, and hauled wood on a 20 acre mini-ranch back in Kansas.

The transaxle was not synchronized but you could change gears on the fly.

I repainted it a Red/Orange, rebuilt the 7 HP Tecumseh engine, rebuilt the carb, rebuilt the transaxle, and put a small AC/Delco alternator in it with a small diameter pulley. I also installed an extra panel switch that powered a heated snowmobile seat pad, and put a headlight on the hood. It fired up in any weather. smile

Many people thought it was a Wheelhorse and I had offers of up to $550.00.

I used a Blended (semi-synthetic) GL-4 75W90 in the transaxle and it worked well. Engine oil was a 10W30 synthetic.

I used it for over 20 years.


Last edited by MolaKule; 02/14/20 01:29 PM.

Charlie Eppes: "Larry, have a minute?"
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Re: Equivalent? [Re: puma4440] #5345844 02/10/20 04:59 AM
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I would stick with the 30W non detergent. The demands that gear box is placing on the lubricant is minimal. Since you do not know the type of metals for bushings being used, I wouldn't deviate from the original spec,you plan on using it in the winter months, I wouldn't go anything thicker.The 30W has done its job all these years.

Last edited by Lubener; 02/10/20 05:02 AM.

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Re: Equivalent? [Re: puma4440] #5346303 02/10/20 02:50 PM
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MolaKule Offline
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OP: If the transaxle in your unit is similar to the one I rebuilt there is nothing in there that can be attacked by modern gear lubes.

I would not use a Non-Detergent oil as there is zero anti-wear additives in ND oil and you need those Anti-wear components.

Last edited by MolaKule; 02/10/20 03:26 PM.

Charlie Eppes: "Larry, have a minute?"
Dr. Larry Fleinhardt: "Yes. Because we all have exactly the same number of minutes at all times, do we not?" From NUMB3RS
Re: Equivalent? [Re: puma4440] #5347813 02/12/20 05:42 AM
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mker Offline
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I would just stick with non-detergent 30 weigh oil. I am pretty sure back in 1969 there were already all sort of gear oil available yet it didn’t ask for it back then. You can never be sure there no copper components inside the gear box. Why take a chance with something else?

Re: Equivalent? [Re: mker] #5348097 02/12/20 12:32 PM
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MolaKule Offline
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Originally Posted by mker
I would just stick with non-detergent 30 weigh oil. I am pretty sure back in 1969 there were already all sort of gear oil available yet it didn’t ask for it back then. You can never be sure there no copper components inside the gear box. Why take a chance with something else?



So no transaxle gear boxes ever need Anti-Wear additives?


Charlie Eppes: "Larry, have a minute?"
Dr. Larry Fleinhardt: "Yes. Because we all have exactly the same number of minutes at all times, do we not?" From NUMB3RS
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