Mobil 1, 15w50?

Discussion in 'Oil' started by 09GLDR, Sep 22, 2009.

  1. 09GLDR

    09GLDR Member

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    Hey guys, had a guy request his 10k service on a 09 Ultra classic yesterday and brought in/said it would be ok to put mobil 1 15w50 in his motor and primary. I told him I've never ran it or recommended it to anyone else, he insisted that it would be fine. I have my reservations about it but I have no history with this oil in bikes. Any concerns about that, or is it ok?
     
  2. glider

    glider Veteran Member

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    Many use it but the 20/50 is better in the air cooled engines. The additives are different. It's his bike and if he feels comfortable with it then use it.
     
  3. 09GLDR

    09GLDR Member

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    ok, I've read all the oil post here (and there is plenty of them) and never really saw anything about that oil, so was just wondering. Thanks glider.
     
  4. glider

    glider Veteran Member

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    20/50 will break down some with the heat of the air cooled engines, The 15/50 was made for water cooled cars not air cooled bikes.
     
  5. jaceddie

    jaceddie Junior Member

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    I use the Mobile 1 V-twin 20-50 and like it but wouldn't use it in the primary. I use HD primary oil in the primary.
    It's cheaper and works well.
     
  6. paulmack

    paulmack Active Member

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    I always use Mobil1 20W/50.
     
  7. Hoople

    Hoople Account Removed

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    It is just an opinion but I mean these words. I would not use Mobile 1 if it was Free. I have had just too many bad experiences with that oil.

    Answer me this one question.
    What is maximum oil temp you will ever see in an engine like ours? Tops Maybe 300-325?
    At the same time, I remember seeing Mobil 1 TV commercials where they put some 10w20/30 in a frying pan and cooked it to like 400 degrees and it was still going strong. So how is it a 15/50 will break down under the heat of an air cooled engine.
    If it is so good, why is it breaking down at 325 degrees.

    I just don't understand.

    Hoop!
     
  8. Blue Wide Glide

    Blue Wide Glide Junior Member

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    I use the 15-50 in the engine and have never had any problems. I use Harley Plus in the primary.
     
  9. glider

    glider Veteran Member

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    That's because you're a Hoop! :lolrolling
     
  10. Hoople

    Hoople Account Removed

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    Glider your Too Funny! :)