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I have a 912 80hp and I'm indicating 210 degrees F. during normal flight in 80 degree F. Outside temp. What are others getting? It's in a,round cowl KITFOX 4. What is allowable? I'm running 20/50 full synethetic.
  • Re: Oil temp 912UL

    by » 11 years ago


    I've been running at about 210F degrees plus or minus 10 degrees on hot days with oil cooler covered with aluminum tape.
    In the winter at 15 degrees F. I can't seem to get above 175 degrees F.
    I use 10-40 synthetic.
    AirCreation Trike.

  • Re: Oil temp 912UL

    by » 11 years ago


    Hi Kurt,

    Your oil temp is normal. 210F should burn off any moisture in the oil. I'm right around 215F here in Tucson, AZ right now with the same OAT in the mornings. I think most people see any where from 200F-230F for their normal. Having a cowled engine usually lets you keep your temps up better in the more normal oil temp range than a fully exposed engine.

    Roger Lee
    LSRM-A & Rotax Instructor & Rotax IRC
    Tucson, AZ Ryan Airfield (KRYN)
    520-349-7056 Cell


  • Re: Oil temp 912UL

    by » 11 years ago


    I'm running at around 240@ 500FPM on my sting/912uls. air temps around 60F and onto my second oil temp sensor with less than 40 hours..erratic reading after a few hours use. rotax agents say they don't have problems with the sensors .
    I hear other owners/engineers have issues?

  • Re: Oil temp 912UL

    by » 11 years ago


    Those senders rarely ever go bad. I would look at your wiring and gauge. The temp of 240F at an OAT of 60F is a tad high. I would look at your air flow through the cowl.

    Roger Lee
    LSRM-A & Rotax Instructor & Rotax IRC
    Tucson, AZ Ryan Airfield (KRYN)
    520-349-7056 Cell


    Thank you said by: ian foster

  • Re: Oil temp 912UL

    by » 11 years ago


    I heard form a rotax service company "servicing around 20 units" that they change quite a few sensors.. So I'll have to keep searching. Rotax said the same as you: that they rarely fail!

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