Oil & Fuel Correct Oil Viscosity

[Squeak n Itch]

Another newbie issue.
In my L3130 owner's manual on p. 67 it designates SAE10W-30 for engine lubricant. My dealer always has supplied and all others I've talked with have said the only oil viscosity they use for diesel engines is SAE15W-40. I have been using the 15W-40 and I suppose now isn't exactly the best time to find out I am wrong. Any clarification would be greatly appreciated.

 

[638]

As far north as you are, I would run Rotella 5w40 synthetic if I were you. Thats what I run in southern IN.

ron

 

[B2400]

I run Mobil 1 10w30 year round in my B2400...........1207 hrs so far!!!

 

[Bird]

Another newbie issue.
In my L3130 owner's manual on p. 67 it designates SAE10W-30 for engine lubricant. My dealer always has supplied and all others I've talked with have said the only oil viscosity they use for diesel engines is SAE15W-40. I have been using the 15W-40 and I suppose now isn't exactly the best time to find out I am wrong. Any clarification would be greatly appreciated.

You don't have anything to worry about, whether you stay with what you're using or whether you go with one of the two suggestions above.

 

[Barneyhunts]

When I did the 50 hr. maintenance on my B7800, in November, my dealer sent me Kubota 10 -30W diesel motor oil. At all the other outlets I've checked in my area, including other Kubota dealers 15-40W is the norm. I've been using the 15 -40W in my BX2200 for 5 years without any problems. I do however have and use block heaters on both tractors.

 

[DieselPower]

Simple answer. It calls for 10W/30 that's what you should be using. Many modern diesel engines are now specifying 10W/30 viscosity. Many people in my area are supprised when I sell them oil and tell them that their Caterpillar and Cummins engines in their trucks should be running 10W/30 in my climate. One major advantage of the lower viscosity in OTR trucks is increased fuel economy.

 

[DickS]

Posted before:

Simplify your life.

I run Shell Rotella Synthetic 5W-40 in my Chev 2500 HD diesel, Kubota BX 24, BMW R1150 RT, Yamaha FJR1300, JD 265, Honda 50 and 15 HP outboards, Chev Suburban, Ariens snowblower, Honda Rubicon 500 ATV, Honda 6500 Generator, and Craftsman 22" lawnmower. Never had a problem and never will.

Now go pleasure the Mrs. and forget about this issue for the rest of your life.

 

[Squeak n Itch]

Got it! Thanks to all for the reassurance.

 

[canoetrpr]

Same situation here. Kubota dealers only ever suggest 15W-40. I found it was really good in the summer - my tractor ran cooler.

I'm almost at 100hrs and will be changing to 5W-40 or 0W-40. It's way too cold here and I hate the sound of those cold starts the odd time the block heater is not plugged in for long enough.

 

[rdam]

Simple answer. It calls for 10W/30 that's what you should be using. Many modern diesel engines are now specifying 10W/30 viscosity. Many people in my area are supprised when I sell them oil and tell them that their Caterpillar and Cummins engines in their trucks should be running 10W/30 in my climate. One major advantage of the lower viscosity in OTR trucks is increased fuel economy.

I guess someone at Kubota, a smarty engineer type probably, seems to think 10W/30 is best for their engine...Sounds good to me, rather than buy 15W/40from a dealer "cause we've always used it with no problems".