What oil

Discussion in 'Lawn Mowing' started by grizzly700, Mar 27, 2009.

  1. grizzly700

    grizzly700 LawnSite Member
    Messages: 5

    Was wondering what is the best oil to run in my 21 hp Kawasaki Yazoo Kees mid max mower. Just wondering what is the best or recommended weight?
  2. Happy Frog

    Happy Frog LawnSite Bronze Member
    Messages: 1,224

    What he said...
  3. maintenanceman

    maintenanceman LawnSite Member
    Messages: 34

    All air cooled engines should have a good synthetic oil, imo. And keep the the cooling fins clean. Synthetic is optional, but also recommended in water cooled engines.
  4. AmsoilPower

    AmsoilPower LawnSite Senior Member
    Messages: 938

    Yep. What they said.:)
  5. betmr

    betmr LawnSite Bronze Member
    Messages: 1,663

    I would sujest contacting the engine manufacturer. I just recieved a service bulletin from Toro about some Synthitic oils causeing seal problems. It seems that some of the chemicals in them is haveing an effect on the seals.

    I would sujest all you guys useing Synthetic oil check with your reps to be sure they are compatible and not have an effect on your waranties. Manufacturers don't like to cover things that are not recomended by them. Put in what the manufacturer recomends and you can't go wrong. It's all in your owner's manuale, and if you don't have one, you can get it on line.
  6. michaelee2

    michaelee2 LawnSite Member
    Messages: 150

    Amsoil only way to go.
  7. betmr

    betmr LawnSite Bronze Member
    Messages: 1,663

    Oh, and that service bulletin is "General #01-09" you can find it at toro.com under service bulletins, Its topic is use of non-recomended hydraulic oil, but it talks about Lubricants, and Warenties, worth reading.
  8. Happy Frog

    Happy Frog LawnSite Bronze Member
    Messages: 1,224

    What is the name of the oil causing problems?
  9. ricky86

    ricky86 LawnSite Silver Member
    Messages: 2,094

    Any name brand SAE-30 oil will work fine. Change at 100 hrs. You wont have a problem. Can you justify the added expense of synthetics when cost is such a concern? And cost is always a concern ALWAYS. But if you do have addition cash, don't spend it on oil, run premium fuel. That will help more than than the oil. Sometimes, in the summer, FH and FD's will "run on" with lower octane. Now, who's goin to say "but synthetics run cooler"

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