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  1. #71
    New Member
    Join Date
    Apr 2010
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    16
    Location
    Minnesota
    Tractor
    BX2200

    Default Re: Kubota engine oil recommendation

    I had never heard of 10w40 diesel oil cc/cd since the 80's either, but Petro Canada now has a 10W40 in their Duron synthetic lineup. I think it is farely new.

    I know of a local construction company that switched to it from Duron 15w40. They were extending intervals to 400 hours for the past 7 years with Duron. They actually had engines lasting longer with this oil after doubling the intervals. They have Cat D6R's with engines getting rebuilds at 15,000 hours. The techs at Ziegler Cat find 15k wear comparable to what they normally find at 10k. They have extended the interval with the syn 10w40 to 600 hours. Of course they do oil analysis and tested a few pieces with the new oil before changing the fleet to a new oil and schedule. This is with a fleet of Cat & John Deere excavators, artic trucks, dozers, Mack dump trucks and misc equipment all getting this oil and schedule. They usually buy used at 2-4k hour and run some pieces for the long haul before trading. Many times rebuilding engines rather than selling at 12-16k hours depending on the oil analysis. With previous oils used Mobil Delvac at 200 hrs, most equipment needed rebuilds by 12k except for some komatsu excavators that used to last longer. There is an ingersoll rand DD16 roller with a kubota 24 hp 3 cyl with over 10k hr on the clock still going strong with 400 hr service interval.

    Petro Canada is hard to find except for bulk oil distributors. They sell mainly in Canada as the bottles come in liters.

    For us homeowner Kubota tractor owners we don't run so many hours or see the savings on a large scale to extend intervals so much. I use 5w40. I used fleet farm rated 5w40 two years ago and ran 100 hours and did an analysis with great results. I currently have Valvoline 5w40 in the crankcase I found at walmart for $14.50/gallon! They priced it at conventional prices and I got lucky. It is not there anymore. My next change will be Delo 5w40 - I found that walmart recently for $19.95 / gal. I had used Mystic Jt8 10w30, but had some consumption in hot weather mowing. 1/2 quart in 50 hours. I didn't want to use 15w40 in winter and only run about 90 hours a year, so one change a year with 5w40 is my answer. No problems or oil usage. Starts great and gives me peace of mind. I would recommend any synthetic 5w40 as my oil of choice for Kubotas.

  2. #72
    Elite Member WilliamBos's Avatar
    Join Date
    May 2004
    Posts
    4,473
    Location
    Innisfil, Ontario, Canada
    Tractor
    MF 1635 12x12 Powershuttle

    Default Re: Kubota engine oil recommendation

    I have heard that Petro Canada has quite a few distrubutors throughout the USA.

    We will be running Duratran synthetic in our trans on the next change. It is not hard to tell that Permatran is not synthetic on cold winter days.

    Quote Originally Posted by lindnova View Post
    I had never heard of 10w40 diesel oil cc/cd since the 80's either, but Petro Canada now has a 10W40 in their Duron synthetic lineup. I think it is farely new.

    I know of a local construction company that switched to it from Duron 15w40. They were extending intervals to 400 hours for the past 7 years with Duron. They actually had engines lasting longer with this oil after doubling the intervals. They have Cat D6R's with engines getting rebuilds at 15,000 hours. The techs at Ziegler Cat find 15k wear comparable to what they normally find at 10k. They have extended the interval with the syn 10w40 to 600 hours. Of course they do oil analysis and tested a few pieces with the new oil before changing the fleet to a new oil and schedule. This is with a fleet of Cat & John Deere excavators, artic trucks, dozers, Mack dump trucks and misc equipment all getting this oil and schedule. They usually buy used at 2-4k hour and run some pieces for the long haul before trading. Many times rebuilding engines rather than selling at 12-16k hours depending on the oil analysis. With previous oils used Mobil Delvac at 200 hrs, most equipment needed rebuilds by 12k except for some komatsu excavators that used to last longer. There is an ingersoll rand DD16 roller with a kubota 24 hp 3 cyl with over 10k hr on the clock still going strong with 400 hr service interval.

    Petro Canada is hard to find except for bulk oil distributors. They sell mainly in Canada as the bottles come in liters.

    For us homeowner Kubota tractor owners we don't run so many hours or see the savings on a large scale to extend intervals so much. I use 5w40. I used fleet farm rated 5w40 two years ago and ran 100 hours and did an analysis with great results. I currently have Valvoline 5w40 in the crankcase I found at walmart for $14.50/gallon! They priced it at conventional prices and I got lucky. It is not there anymore. My next change will be Delo 5w40 - I found that walmart recently for $19.95 / gal. I had used Mystic Jt8 10w30, but had some consumption in hot weather mowing. 1/2 quart in 50 hours. I didn't want to use 15w40 in winter and only run about 90 hours a year, so one change a year with 5w40 is my answer. No problems or oil usage. Starts great and gives me peace of mind. I would recommend any synthetic 5w40 as my oil of choice for Kubotas.
    Thanks,

    Will


    I do not care if someone's net nanny is watching!! You need to stop...

  3. #73

    Default Re: Kubota engine oil recommendation

    I
    Quote Originally Posted by piller View Post
    I've got a new kubota M8540 tractor and was unsure which engine oil to use so I submitted a question using the kubota web site.

    I received a call today from a service representative at Kubota headquarters in Atlanta, GA (I'm in Tennessee). I was told that I should use 10W-30 engine oil which has the CE or CF API rating. I was told not to use 15W-40. I was told that I do not need to use Kubota brand oil, I would not void my warranty by using another oil as long as it had the correct weight and API rating.

    My operators manual says 10W-30 or 10W-40 with the CD, CE, or CF ratings. What is interesting is that I contacted two local kubota dealers and they both said to use 15W-40 which contradicts the operators manual and the advice from kubota headquarters.

    So I went today and bought 3 gallons of Kubota 10W-30 engine oil, it has the proper API CF rating, actually it goes up to CI-4 I believe.

    I was also told by Kubota headquarters not to use synthetic oil in the new motor, it had something to do with the rings. Kubota headquarters did not see much value in using synthetic oil but said if I really wanted to use it I should wait until the engine has 150 to 200 hours on it. I think I'll just stay with the standard oils which apparently are very good quality these days.

    I have the hydraulic shuttle wet clutch transmission on my tractor and was told by kubota headquarters that I should use the Kubota SUDT fluid for the transmission/hydraulic fluid.

    Finally Kubota headquarters also said I should use heavy weight 80W-90 gear oil in the front axle instead of the SUDT fluid. He gave me a tip on changing the front axle fluid, he said to open the drain holes at each of the outer hub gear assemblies and drain the fluid and then to use the front end loader to lift the front end a little and then to push down on the tire/wheel to tilt the axle to get more fluid to drain out.
    I put a new Kobota motor in my 1782 400 hours back,i run 10+40 Mobil One Turbo Diesel the 722 20.5 hp and Mobil One oil filter never ANY problems and using a UNI foam 2 stage air filter.

  4. #74
    Member
    Join Date
    Feb 2005
    Posts
    33
    Location
    Lampasas Tx
    Tractor
    Kubota L3130GST, RTV900

    Default Re: Kubota engine oil recommendation

    Quote Originally Posted by noshoes1951 View Post
    I

    I put a new Kobota motor in my 1782 400 hours back,i run 10+40 Mobil One Turbo Diesel the 722 20.5 hp and Mobil One oil filter never ANY problems and using a UNI foam 2 stage air filter.
    kubota has updated their specs. They say you can use CJ-4 now and you can use 15w-40. However, they say not to mix different colors of antifreeze (which is bunk and says so on most antifreeze bottles).

    Kubota Service Lubricant Maintenance

  5. #75
    Member kozman's Avatar
    Join Date
    Apr 2010
    Posts
    27
    Location
    Farmington, NH USA
    Tractor
    Kubota B3200HSD

    Default Re: Kubota engine oil recommendation

    What do the numbers mean on the oil anyway???

  6. #76
    Platinum Member
    Join Date
    Apr 2007
    Posts
    573
    Location
    Northern Lower Michigan
    Tractor
    Kubota B3030HSDC

    Default Re: Kubota engine oil recommendation

    Which numbers are you refering to?The 10W30,15W40,5W40 ,etc.refer to the viscosity(thickness)of the oil.
    Or the CJ-4,CI-4,etc,which refer to the service applicaton of the engine?

  7. #77
    Gold Member CanuckPT's Avatar
    Join Date
    Sep 2012
    Posts
    267
    Location
    West Chesterfield, NH
    Tractor
    2011 Kubota B3300SU

    Default Re: Kubota engine oil recommendation

    Wow - who knew it'd be so stinking hard just to choose an oil!!! I have a 2011 kubota B3300SU with 32 hours. I'm pulling the trigger on my 50 hour service early as I'm suspicious that I may have some water in my hydraulic fluid. I've ordered up a full set of filters, Kubota SUDT2 but now there seems to be way too many choices for oil!! Some of the replies on this thread extoll the virtues of going synthetic - but not too soon (??). The vast array of weight combinations becomes mind numbing. I live in NH so I do need a winter weight to what ever I choose. There seems to be a lot of good feedback for Rotella Rotella Synthetic 5W-40 Motor Oil Get the Shell Rotella Motor Oil for less at Walmart.com. Save money. Live better. $21.36/gallon at Walmart. Is this a good choice for my situation?

  8. #78
    Platinum Member rScotty's Avatar
    Join Date
    Apr 2001
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    977
    Location
    Rural mountains - Colorado
    Tractor
    Many in the past. Today, a Kubota M59, JD530, 2 Yanmars - 16 & 33 hp, & a JD310SG

    Default Re: Kubota engine oil recommendation

    Quote Originally Posted by CanuckPT View Post
    Wow - who knew it'd be so stinking hard just to choose an oil!!!
    Congratulations on that B3300 tractor!
    Oil's not a difficult subject, although take what I say with a grain of salt because after nearly half a century of being a mechanic, I am still not sure that I have ever seen excessive or minimal wear in an engine that I can be sure was due to the type or brand or weight or type of oil.

    IMHO, most of the wear comes from a these sources:
    1. Repeated cold starts
    2. Not paying attention to good filtration of the air and oil.

    I wish it were as simple as selecting a type of oil, but my experience says it isn't. As near as I can tell, if you decide you don't like the oil you've picked, don't worry. If you've come anywhere close to being right it isn't going to harm the tractor in the next hundred hours. Ignoring #1 and #2 above will.

    However, selecting an oil of the proper viscosity and type is easy to do with a bit of education. That sounds to me what you are wanting, and if it is, you can learn a lot if you got back up to message # 64 and follow Rebel's link to the article posted about 4 years ago. It's "Motor Oil Basics" by Dr. Ali E. Haas (AEHaas).

    BTW, your picture shows a tractor in the snow....which means cold starts..... Do you have a block heater and use it religiously? That's probably as important as choosing an oil.
    FWIW, in my own tractors I use 15w-40 Shell Rotella T - which is a refined oil - not a synthetic. That's just what I'm used to; I've nothing against synthetics....but also no experience or need. It's interesting that all of our other tractors - including right now our JD530 and both Yanmars all came stock with a more sophisticated air and oil filtration than the kubota M59 has...although Kubota does offer an upgraded centrifugal air filter at extra expense.
    Enjoy!
    rScotty
    Pride of place goes to our 2 cylinder John Deer 530. She's as modern & useful today as 50 years ago.
    A Kubota M59 & a JD310SG for TLB work....giving us options on doing the same job.
    By the barn sleeps a pair of 33 & 16 hp 4wd US Yanmars getting along in years: Mr. Big & Ms Little.
    And a yard full of well-beaten implements which work far better than they look.



  9. #79
    Gold Member CanuckPT's Avatar
    Join Date
    Sep 2012
    Posts
    267
    Location
    West Chesterfield, NH
    Tractor
    2011 Kubota B3300SU

    Default Re: Kubota engine oil recommendation

    Thanks kindly for your response rScotty. I do not have a block heater for my tractor. I keep it garaged (unheated). What's your opinion on the magnetic block heaters?

    Walmart has the Rotella for $12.97/gallon. It seems that this would be a prudent way to go - both as a quality oil and a decent price?

    Shell Rotella T 15W40 Motor Oil, 1 Gal - Walmart.com

  10. #80
    Platinum Member rScotty's Avatar
    Join Date
    Apr 2001
    Posts
    977
    Location
    Rural mountains - Colorado
    Tractor
    Many in the past. Today, a Kubota M59, JD530, 2 Yanmars - 16 & 33 hp, & a JD310SG

    Default Re: Kubota engine oil recommendation

    Quote Originally Posted by CanuckPT View Post
    Thanks kindly for your response rScotty. I do not have a block heater for my tractor. I keep it garaged (unheated). What's your opinion on the magnetic block heaters?
    I think the magnetics are way better than no heater, but some do take a long time to heat the oil.
    Best of all is a warm garage! But who wants to sacrifice warm workshop space to a machine that is made to live outside? :-)
    Next best is probably something like the venerable Red Devil inserted in the coolant hose.
    Third best is the standard 110v. block heater that replaces a freeze plug - that's what I use, but these can leak if poorly installed (if you check it and no leaks they last decades) and they also have to be the one specifically for that particular motor so that it will clear the internal casing inside the block.
    Last in line comes the magnetic oil pan type - easiest to attach but external so has lower heat transfer. My machines are outside and a tarp or blanket over the hood helps in the wind.

    Quote Originally Posted by CanuckPT View Post
    Walmart has the Rotella for $12.97/gallon. It seems that this would be a prudent way to go - both as a quality oil and a decent price?
    That would be my choice. Pre-heating the engine like we do allows us to fudge a bit on the low temp specs.
    luck, rScotty
    Pride of place goes to our 2 cylinder John Deer 530. She's as modern & useful today as 50 years ago.
    A Kubota M59 & a JD310SG for TLB work....giving us options on doing the same job.
    By the barn sleeps a pair of 33 & 16 hp 4wd US Yanmars getting along in years: Mr. Big & Ms Little.
    And a yard full of well-beaten implements which work far better than they look.



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