how much oil twixt the min-max notches? - Wrist Twisters
 
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post #1 of 14 Old 10-11-2013, 02:25 PM Thread Starter
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how much oil twixt the min-max notches?

I'm losing a bit of oil between changes....looks like about a little more than the min mark every 3000 miles, but I wanna do a more exact investigation...trying to figure out how much I'm losing, then why...


I've been doing a log for mpg as well, and after about ten fill ups I am averaging about 35 mpg over 1000 miles. Seems low to me, but I wanna figure out the reason.

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post #2 of 14 Old 10-11-2013, 03:31 PM
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Any oil in the air filter? 919's aren't known for burning oil, but in some cases, a little bit of oil is normal.

If you're overfilling the oil, some of it could burp back into the intake.

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post #3 of 14 Old 10-11-2013, 05:43 PM Thread Starter
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Quote:
Originally Posted by g00gl3it View Post
Any oil in the air filter? 919's aren't known for burning oil, but in some cases, a little bit of oil is normal.

If you're overfilling the oil, some of it could burp back into the intake.
I will pull the filter and check. I seem to remember maybe a tad...

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post #4 of 14 Old 10-11-2013, 06:13 PM
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mine will go from top of the window to the bottom in a 3k OCI... pretty typical especially with the high revs the bike always sees. that will tend to atomize the oil in the air and will suck more oil out through the crank case ventilation.

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post #5 of 14 Old 10-12-2013, 10:20 AM Thread Starter
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Quote:
Originally Posted by nd4spdbh View Post
mine will go from top of the window to the bottom in a 3k OCI... pretty typical especially with the high revs the bike always sees. that will tend to atomize the oil in the air and will suck more oil out through the crank case ventilation.
K. Gonna check every 500ish miles with chain lube to log exactly how much it drops. Found a good spot on the street with a kickstand prop to get a nice and level look at it. I just wonder how much exactly is between the lines...

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post #6 of 14 Old 10-12-2013, 11:02 AM
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Mine goes 3-4k OCI and drops 1/4 of the sight window, if that. 35mpg is on the low side if you're mostly commuting/easy going. WOTs frequently would make the mileage more accurate.

Which gets to the next question: How bad does your 919 stink? If your FPR is getting fuel into oil, it might cause the oil level to rise and promote consumption. The fuel evaporates and you're left with a lower oil level. (Someone tell me if this logic is wrong please, my best guess aside from just actual oil consumption)

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post #7 of 14 Old 10-12-2013, 11:29 AM Thread Starter
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Quote:
Originally Posted by andrewebay1 View Post
Mine goes 3-4k OCI and drops 1/4 of the sight window, if that. 35mpg is on the low side if you're mostly commuting/easy going. WOTs frequently would make the mileage more accurate.

Which gets to the next question: How bad does your 919 stink? If your FPR is getting fuel into oil, it might cause the oil level to rise and promote consumption. The fuel evaporates and you're left with a lower oil level. (Someone tell me if this logic is wrong please, my best guess aside from just actual oil consumption)
What does OCI mean? WOT?

I rarely get up to fifth gear, mostly 3rd and sometimes 4th, and I have a tendency to pretend the street is a race track as well....

FPR was replaced maybe 3-4 oil changes ago...

Stink is mild, seems to come and go, obviously hard to quantify though...

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post #8 of 14 Old 10-12-2013, 11:40 AM
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OCI ... oil change intervel.
WOT ... wide open throttle.

Use of WOT may call to adjust your OCI though. Haha.

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post #9 of 14 Old 10-12-2013, 11:49 AM Thread Starter
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Quote:
Originally Posted by HeliMech View Post
OCI ... oil change intervel.
WOT ... wide open throttle.

Use of WOT may call to adjust your OCI though. Haha.
Aha. So perhaps I'm just flogging it too hard and should commute more instead of moto GP fantasizing....

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post #10 of 14 Old 10-12-2013, 11:59 AM
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Meh... its a honda it will be fine. Excessive fueling and minor oil consumption add to the reliabilty and charm.

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post #11 of 14 Old 10-12-2013, 12:30 PM Thread Starter
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Also...my oil color goes dark pretty quickly...I changed it 2 days ago, and its still relatively clear but already darker than the honey clear color right after it goes in...

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post #12 of 14 Old 10-12-2013, 12:35 PM Thread Starter
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post #13 of 14 Old 10-12-2013, 01:02 PM
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Looks fine to me.
I normally change around 2-3k miles. Lose maybe 1/4 of the distance between the lines.
Also, my mileage changes quite a bit with air temp. Colder means worse mileage for me. A colder day and hardish riding saw mid to high 20s for me. My average over 2 years of logging every fill is about 36.
I also do a lot of wot and near red line shifts.

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post #14 of 14 Old 10-12-2013, 02:41 PM
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Quote:
Originally Posted by sytheii View Post
Some oil pours like that out of the bottle lol. The synthetic diesel oil I use turns dark within a week or two, shifts smooth all the way to the oil change.

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----------------
------------
---------
------
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- '96 Race-retired GSXR 750 (Sold)
- '01 RC51 SP1 (Sold)
- '03 919

"Security is mostly a superstition, it does not exist in nature: avoiding danger in the long run is no safer than outright being exposed. Life is either a daring adventure or nothing."-Helen Keller
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