B7100 gear, gear oil question

BiggB

Member

Equipment
B7100D, B2030 front blade
Mar 20, 2026
64
38
18
New York
Good day all I just wanted to check that the recommendation for gear oil is as the shop manual says SAE 80. I’m in NY it can get cold and I don’t know if it’s ever been changed

thanks
 

North Idaho Wolfman

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L3450DT-GST, Woods FEL, B7100 HSD, FEL, 60" SB, 743 Bobcat with V2203, and more
Jun 9, 2013
36,034
11,013
113
Sandpoint, ID
No change, but straight 80W is hard to find and normally expensive.
Just use UDT or UDT compatible and call it good.
 
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85Hokie

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BX-25D ,PTB. Under Armor, '90&'92-B7100HST's, '06 BX1850 FEL
Jul 13, 2013
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Bedford - VA
Go to Wallyworld .............. it happens to be on sale too.


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85Hokie

Moderator
Staff member
Lifetime Member

Equipment
BX-25D ,PTB. Under Armor, '90&'92-B7100HST's, '06 BX1850 FEL
Jul 13, 2013
11,124
3,057
113
Bedford - VA
Thanks again! I need engine oil for it too shell Rotella 15w40?
and just about finished the last of my front blade saga lol
Rotella T6.......... they have two blends... 5w-40 and 15w-40..........

the 5w-40 would be my choice in the cold of NY.
 
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Jim L.

Active member
Jun 18, 2014
883
180
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Texas
Just to be absolutely clear, diesel engine oil for diesel, gas engine oil for gasoline engines. They are formulated differently.
 

Runs With Scissors

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L2501 TLB , Grappel, Brush Hog, Box Blade, Ballast box, Forks, Tiller, PH digger
Jan 25, 2023
3,928
5,287
113
Michigan
I’ll second the vote for Rotella.

I’m in Mi, so we probably have “similar” winters.

My “Kubota life” started out with the Kubota brand 10w30, but found a “stupid good” deal on 20 gallons of Rotella 5w-40, so that is my flavor for now.

My truck has used a variety of Rotella flavors from 15w-40 T3 all the way to the “newest” T6 5w40.

I think they make a 0w-40 now, but I could not locate any locally when it was on “Super Special”…...

I also just go with the SUDT 2 (?) to keep things simple. Can’t hurt I figure.
 
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