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  1. #1

    How do you know you have gas in your oil?

    Will the gas separate from the oil like water does or is the oil just runny? When I changed the oil on my Ultra LX the oil was definitely thicker than it was on my 250x, but the oil did not smell like fuel.


  2. #2
    Baya
    Join Date
    Nov 2007
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    CAYMAN ISLANDS
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    If it has gas you will see the gas on top of the oil when you change it and it will smell like gas.

  3. #3
    Why is my oil so runny? Probably GIO, huh? Wish I could find that thread on how to do that OCMS mod.

  4. #4

    Evidence of GIO

    I figured out after a while that I could not reliably diagnose GIO just from looking at or smelling the dipstick.

    2 better methods:

    1) Measure precisely your oil level before and after ride (with engine warm and ski perfectly level). Has level risen? If you have GIO, the rise in level is noticeable;

    2) Inspect your air box vent tube. Is it clean and dry as a whistle or is it full of smelly, dark, thin mix of gas and oil as shown in photo? When you pour out the liquid and let it sit for a while, the gas and oil will separate.
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

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  5. #5
    ex doo rider wpabrams's Avatar
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    Aug 2008
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    Lexington,SC
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    What year is your LX ????

  6. #6
    Quote Originally Posted by wpabrams View Post
    What year is your LX ????
    LX is 07, but no issue. 250X is 08.

  7. #7
    Quote Originally Posted by Blue 182 View Post
    I figured out after a while that I could not reliably diagnose GIO just from looking at or smelling the dipstick.

    2 better methods:

    1) Measure precisely your oil level before and after ride (with engine warm and ski perfectly level). Has level risen? If you have GIO, the rise in level is noticeable;

    2) Inspect your air box vent tube. Is it clean and dry as a whistle or is it full of smelly, dark, thin mix of gas and oil as shown in photo? When you pour out the liquid and let it sit for a while, the gas and oil will separate.
    there was thin dark fluid in airbox vent.

  8. #8

    Evidence of GIO

    Quote Originally Posted by jtmajors View Post
    there was thin dark fluid in airbox vent.
    OK. How much? And how long did it take to collect?

    If a lot built up fast, next step is to inspect intercooler. Are vanes mucked with espresso like sludge?

    Bad GIO will foul intercooler. Symptoms of fouled intercooler include everything from loss of rpm, boost and top end to sputterring, misfirng etc.

    Photo is looking into intercooler. Its posted to show one place to look, not real sludge at its worst. I/C had to be repeatedly cleaned, sometimes as often as every 4 to 6 hrs.
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  9. #9
    GODOSIDIS's Avatar
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    Greece
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    Dont trust your nose.
    Best way is to monitor oil level.

  10. #10

    Join Date
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    Chicago; Loudon,TN
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    Quote Originally Posted by Blue 182 View Post
    OK. How much? And how long did it take to collect?

    If a lot built up fast, next step is to inspect intercooler. Are vanes mucked with espresso like sludge?

    Bad GIO will foul intercooler. Symptoms of fouled intercooler include everything from loss of rpm, boost and top end to sputterring, misfirng etc.

    Photo is looking into intercooler. Its posted to show one place to look, not real sludge at its worst. I/C had to be repeatedly cleaned, sometimes as often as every 4 to 6 hrs.
    Mine at about 10 hours was maybe 1/3 full with a clear fluid--could have been gas or oil. Now at 20 hours it's full and dark Haven't done any service yet but will soon.

    The oil is still clear on the dispstick but did go up about 1/3" after a 3-4 hours but has stayed the same up to 20 hours.

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