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Best 5W50 oil for Tuff Torque K46 transaxle? #4432149
06/15/17 08:33 AM
06/15/17 08:33 AM
Joined: Dec 2012
Posts: 41
MO
cwatkin Offline OP
cwatkin  Offline OP
Joined: Dec 2012
Posts: 41
MO
I am restoring an old lawn tractor that has sat for a while. One of my plans is to change out the transmission fluid once I get the engine running right.

It seems that a 5W50 synthetic is suggested. Anyone have a good suggestion for the best brand or variety of oil for this application?

Re: Best 5W50 oil for Tuff Torque K46 transaxle? [Re: cwatkin] #4432178
06/15/17 09:07 AM
06/15/17 09:07 AM
Joined: Dec 2016
Posts: 7,117
Waco, TX
Linctex Offline
Linctex  Offline
Joined: Dec 2016
Posts: 7,117
Waco, TX
Originally Posted By: cwatkin

It seems that a 5W50 synthetic is suggested.


By whom?

They often/usually use either ATF or 10W30 oil.


"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: Best 5W50 oil for Tuff Torque K46 transaxle? [Re: cwatkin] #4432179
06/15/17 09:12 AM
06/15/17 09:12 AM
Joined: Dec 2012
Posts: 41
MO
cwatkin Offline OP
cwatkin  Offline OP
Joined: Dec 2012
Posts: 41
MO
The manufacturer as well as others online. Here it is from the maker of these things: http://www.tufftorq.com/faq/

Re: Best 5W50 oil for Tuff Torque K46 transaxle? [Re: cwatkin] #4432191
06/15/17 09:29 AM
06/15/17 09:29 AM
Joined: Apr 2010
Posts: 4,547
Storrs, Connecticut
jeepman3071 Offline
jeepman3071  Offline
Joined: Apr 2010
Posts: 4,547
Storrs, Connecticut
Yup, Tuff Torq went from a 10w30 to a 5w50 synthetic recommendation.

I have Castrol Edge 5w50 in my K66 and it has been great. Seems a bit quieter over the previous fluid.


2000 Jeep Cherokee 4.0L (181k) - Pennzoil 10w30, Napa Gold 1516, Magnefine trans filter
2009 BMW 328i (35k) - Castrol Edge Euro 0w40, MANN HU816X
Re: Best 5W50 oil for Tuff Torque K46 transaxle? [Re: cwatkin] #4432196
06/15/17 09:34 AM
06/15/17 09:34 AM
Joined: Jun 2013
Posts: 1,762
Virginia
mattwithcats Offline
mattwithcats  Offline
Joined: Jun 2013
Posts: 1,762
Virginia

Last edited by mattwithcats; 06/15/17 09:40 AM.

2009 Smart Pure
Pennzoil Platinum Euro 0W-40, Purolator Synthetic PSL 14610, 45 mpg...
185/55R15 General HP tires, "H" speed rated, 44 psi (300 kpa)
Re: Best 5W50 oil for Tuff Torque K46 transaxle? [Re: cwatkin] #4432445
06/15/17 02:13 PM
06/15/17 02:13 PM
Joined: Aug 2011
Posts: 3,264
n.c.
gman2304 Offline
gman2304  Offline
Joined: Aug 2011
Posts: 3,264
n.c.
I used Mobil1 15w50 when I changed out the factory fill in my K61 TT about 8 years ago. It's smooth, quiet and very responsive. The Mobil1 is relatively inexpensive and easy to find.

Re: Best 5W50 oil for Tuff Torque K46 transaxle? [Re: jeepman3071] #4432550
06/15/17 04:31 PM
06/15/17 04:31 PM
Joined: Aug 2016
Posts: 520
West Michigan
Balrog006 Offline
Balrog006  Offline
Joined: Aug 2016
Posts: 520
West Michigan
Originally Posted By: jeepman3071
Yup, Tuff Torq went from a 10w30 to a 5w50 synthetic recommendation.

I have Castrol Edge 5w50 in my K66 and it has been great. Seems a bit quieter over the previous fluid.


I used Castrol as well, it was the only xW50 oil I could find at the time I did mine 4 years ago. My K46 in my L-130 is still going strong on it.


19 Ridgeline RTL-E >1K factory fill, A01
08 CRV 275K+ VSyn w/ML, A01
04 JD L130 740H, Mobil S 5w30
13 JD 2032r 325H, JD Plus 50 ii 15w40
M1Delvac 5w40 in OPE
Re: Best 5W50 oil for Tuff Torque K46 transaxle? [Re: cwatkin] #4432700
06/15/17 06:48 PM
06/15/17 06:48 PM
Joined: Feb 2015
Posts: 770
Sask, Canada
BrianF Offline
BrianF  Offline
Joined: Feb 2015
Posts: 770
Sask, Canada
I used Motomaster 5w50 synthetic in mine. I believe that the MSDS shows that this oil is manufactured by Shell. The thing runs great. Find the cheapest synthetic 50 weight oil and run that. The K46 needs (according to the Tuff torq) a synthetic 50 weight. Mobil, Castrol, Shell, whatever is easiest and cheapest to find.


2006 Trailblazer LT. QSUD with Fram Ultra.
2017 Ram 3500 SLT Megacab. Duron SHP 10w30 with Hastings LF608.
1993 GMC 1500. QSAD with Fram PH5
Re: Best 5W50 oil for Tuff Torque K46 transaxle? [Re: cwatkin] #4432793
06/15/17 08:34 PM
06/15/17 08:34 PM
Joined: Oct 2010
Posts: 949
South Eastern, CT
AMC Offline
AMC  Offline
Joined: Oct 2010
Posts: 949
South Eastern, CT
I don't think the brand you use for it is going to matter. 5w-50 is pretty high tech stuff and on top of that, it isn't being worked very hard in a hydrostatic transmission.

My John Deere has the K62 transaxle and there was some confusion as to which fluid to use, J20C HY-GARD High Viscosity or 5W-50 motor oil. I emailed Tuff Torq and they said either will work fine but the J20C HYGARD will work better in the cooler months. I went with Napa J20C Heavy duty tractor and transmission fluid. The transaxle is faster, quieter and smoother now that I have changed it so I am happy. Maybe next time I will try the 5w-50 and see if it makes any difference.


18 Honda CR-V - Mobil-1 AFE 0w-20
17 Ram 1500 SLT - Napa Synthetic 5w-20
14 Yamaha Super Tenere - Mobil Delvac 15w-40
Re: Best 5W50 oil for Tuff Torque K46 transaxle? [Re: cwatkin] #4433175
06/16/17 09:08 AM
06/16/17 09:08 AM
Joined: Dec 2012
Posts: 41
MO
cwatkin Offline OP
cwatkin  Offline OP
Joined: Dec 2012
Posts: 41
MO
I have some Mobil 1 15W50 on hand for changing out a Hydro Gear transmission. These call for 15W50 or 20W50 so picked the synthetic. I kinda think this might be too thick on startup for the TT as the unit called for 10W30 from the factory and now calls for a 5W50.

Either way, I will get the cheapest synthetic 5W50 I can find as it sounds like ANY will work.

Thanks,

Conor

Re: Best 5W50 oil for Tuff Torque K46 transaxle? [Re: cwatkin] #4433840
06/16/17 10:23 PM
06/16/17 10:23 PM
Joined: Dec 2012
Posts: 41
MO
cwatkin Offline OP
cwatkin  Offline OP
Joined: Dec 2012
Posts: 41
MO
I have located 6 quarts of Kolpin 5W50 ATV oil for $2/quart and have it on its way. I am not familiar with this brand but it is 1/5 the price of any others out there. It looks like it is normally about $10/quart.

Any opinions on this one?

Conor

Re: Best 5W50 oil for Tuff Torque K46 transaxle? [Re: cwatkin] #4433984
06/17/17 06:13 AM
06/17/17 06:13 AM
Joined: Jan 2009
Posts: 1,324
Watertown, New York
cronk Offline
cronk  Offline
Joined: Jan 2009
Posts: 1,324
Watertown, New York
Originally Posted By: cwatkin
I have located 6 quarts of Kolpin 5W50 ATV oil for $2/quart and have it on its way. I am not familiar with this brand but it is 1/5 the price of any others out there. It looks like it is normally about $10/quart.

Any opinions on this one?

Conor


Funny Timing, I just changed out the oil in my Deere's K46 last night and used the Kolpin 5w50.
I was in a pinch because I wanted to change it and really needed to get it done quickly, so I went to a couple parts stores and the only one that had any 5w50 in stock was Advance Auto, and it was the Kolpin for $11 a quart.
Kolpin is a division of Polaris, and this is marketed for the newer Polaris UTV's that call for 5w50.
Not sure who actually makes the oil, if it meets specs for a new UTV, I'm sure it is more than adequate for our hydro units.

I changed it out last night and my daughter drove it around for close to an hour and it was working great!


2008 Ford F350
2003 Chevy Cavalier
2011 Nissan Quest
1986 Pontiac Trans Am
1940 Ford 9N Tractor
Amsoil lubes and filters!
Re: Best 5W50 oil for Tuff Torque K46 transaxle? [Re: cwatkin] #4433991
06/17/17 06:35 AM
06/17/17 06:35 AM
Joined: Dec 2004
Posts: 1,549
Pennsylvania
Slick17601 Offline
Slick17601  Offline
Joined: Dec 2004
Posts: 1,549
Pennsylvania
I used Quaker State 5W-50 the last time I did mine at 355 hours. Got it for $1 per quart at Ollies.


2018 Ram Bighorn 5.7
2008 Toyota Sienna 3.5
Re: Best 5W50 oil for Tuff Torque K46 transaxle? [Re: cwatkin] #4434102
06/17/17 08:50 AM
06/17/17 08:50 AM
Joined: Dec 2012
Posts: 41
MO
cwatkin Offline OP
cwatkin  Offline OP
Joined: Dec 2012
Posts: 41
MO
I figured this would be fine and the price was right. Anyway, I will have it later today so might change my fluid tomorrow.

Thanks,

Conor

Re: Best 5W50 oil for Tuff Torque K46 transaxle? [Re: cwatkin] #4435755
06/19/17 08:26 AM
06/19/17 08:26 AM
Joined: May 2008
Posts: 6,298
Easton, PA
lexus114 Offline
lexus114  Offline
Joined: May 2008
Posts: 6,298
Easton, PA
i used german castrol 0w30 in mine and it runs great on it. i think any synthetic oil in the tt`s will have a significant improvement over mineral oil simply due to how hot they run under there.


2017 Mercedes-Benz C300 4matic coupe 2.0 turbo
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