How many guy's use 20-50 weight oil in there mowers?

Discussion in 'Lawn Mowing' started by olebrooklawn, May 2, 2011.

  1. olebrooklawn

    olebrooklawn LawnSite Member
    Messages: 225

    is it something that is good to use for it?
  2. gasracer

    gasracer LawnSite Bronze Member
    Messages: 1,049

    Unless you are in a very hot climate I wouldn't use that heavy of oil in a mower. 10-30 or straight 30 would be my choice.

    TJSTONE LawnSite Member
    Messages: 23

    I add Energy Release to my machines, rather than use heavier weights.
  4. MONTE

    MONTE LawnSite Senior Member
    Messages: 793

    Use it in the hydro's

    STIHL GUY LawnSite Fanatic
    from CT
    Messages: 5,226

    i use 10w-30 or strait 30 and have never had problems. thats what the owners manual recommends as well
  6. olebrooklawn

    olebrooklawn LawnSite Member
    Messages: 225

    okay thanks. I live in south mississippi
  7. Richard Martin

    Richard Martin LawnSite Fanatic
    Messages: 14,699

    Don't confuse high humidity and heat index with high temperatures. Remember that a heavier weight oil is going to take a little more horsepower and adds heat to the engine.

    TJSTONE LawnSite Member
    Messages: 23

    Take a look at the temp ranges released by the oil manufacturers. Use those as your guidelines.
  9. topsites

    topsites LawnSite Fanatic
    Messages: 21,653

    I use it for chainbar oil, also certain hydraulic pumps take it, the air compressor uses ND 30 but
    straight 30 is roughly the same as 20w-50, neither is even close to 10w-30...

    That may be so but those two oils are nowhere near the same and shouldn't be used in the same sentence as if
    the two were interchangeable, regardless of what some owner's manual might state, they're not.
  10. SouthSide Cutter

    SouthSide Cutter LawnSite Bronze Member
    Messages: 1,331

    Have run 15w50 Mobil 1 in every air cooled engine I own. Never ever have I had a problem. Push mowers, tillers, generators you name it. And NONE of them have ever used oil.

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