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  1. #1
    pgh300x's Avatar
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    Question Fuel in the Oil?

    So I recieved a survey from Kawasaki (offered a free hat to complete it, why not!).

    In the survey it asked "Fuel in Engine Oil".

    I have seen this in a couple threads but never really understood how this happens, what to look for?


  2. #2

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    Raising oil level, comes from fuel pushed pasts the piston rings.

  3. #3
    pgh300x's Avatar
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    Is there any way to prevent this? Something I should be doing other then regular oil changes (15-20hrs, kawi synthetic)?

    What have the other 300 owners experienced?

  4. #4
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    There is. No GIO issue with the 300

  5. #5
    nicjak's Avatar
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    wheres your scientific approach in all your thread recommendations? i for one cant find them

  6. #6
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    Quote Originally Posted by no_more_rice View Post
    It's still winter here, I'll get there
    Unless your lakes frozen no reason u can ride ?

  7. #7
    Self Confessed Day Dreamer toomanytoys's Avatar
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    Quote Originally Posted by no_more_rice View Post
    My opinion is run an aftermarket catch can with a reservoir that traps condensed gas before it drains back to the sump; other than that, the 300X has an oil thermostat and runs higher oil temps, which helps mitigate the issue to some extent (by all reports it's not nearly as serious of issue with the 300). However, essentially any boosted engine will have *some* fuel dilution because they run pig rich at full boost (low 12s AFR).
    Huh. How is the catch can going to prevent GIO given the cause WAS supposed to be blow-by. The higher oil temp evaporates the fuel and is essentially pushed through the intake as a gas via the current catch can. Yes the heavier burnt oil is supposed to drain back....but....normal. I don't think you need an aftermarket catch can, the stock does its job (for rec riders)

    12 is not rich for a boosted engine either. Low 11 would be considered rich. Most boosted cars are aiming high 11's to be safe. More misinformation, not unusual.

  8. #8
    Mothman's Avatar
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    Aftermarket or dui catch can is the way to go. Last year my wot afr's hovered 11.5-11.9 and gave less than a tablespoon of fuel in my can. With @20hr changes my oil still has a weak fuel smell. Unfortunately, blow by can't be stopped.
    Make a catch can and give it a shot! Can't hurt to try, right?

  9. #9
    nicjak's Avatar
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    riceman you still havent shown any proof that the oem can has damaged a motor even with oil dilution and suggested oil changes from oem, that is the point we are trying to make, even in the 250 there was never any proof thats why the can is still there to this day doing what kawasaki designed it to do, only thing changed is more oil and less water for cooling. SO THERE IS NO PROBLEM TO REDUCE FOR THE NORMAL GUY, OTHER THAN YOU.

  10. #10
    Mothman's Avatar
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    That's a nice one. I used an old Berryman's can, unscrewed the cap and buffed all the paint off, JB welded a plastic fitting to the opening, drilled a hole at a 45 degree angle on the top for another fitting (love the JB weld), drilled a bunch of holes in a 5 hr energy 2 oz bottle, stuffed it half full of fiberglass packing and stuck it upside down on the angled fitting. It sits on an aluminum bracket at a 45 degree angle so the 5 hr is straight up. Fuel in Berryman's can, oil vapor in the packing. Function over form, right?

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