Transmission / primary oil - change intervals
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Seasoned HDF Member
Joined: Sep 2005
Posts: 5,072
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From: Prescott, AZ
Transmission / primary oil - change intervals
Service manual say a change every 5,000 miles. For some reason, I thought the intervals were longer for draining and changing?
Your thoughts
Your thoughts
Moderator
Joined: Oct 2012
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From: Ft. Worth, TX
My bike's maintenance schedule requires a change of the transmission lubricant every 15,000 and the primary chain case every 10000. The maintenance schedule also calls for engine oil and filter change at 5000 miles.
I don't obsess over this and usually hit everything around 4-5K.
I don't obsess over this and usually hit everything around 4-5K.
Seasoned HDF Member
Joined: Apr 2013
Posts: 32,851
Likes: 17,888
From: Newcastle, OK
In some bikes the primary oil gets dirty fast, which could mean you need to change it when you change engine oil. The way I look at it is that oil is cheap compared to expensive repairs, so why risk it? I change all three holes every 5K.
Ultimate HDF Member
Joined: Dec 2010
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From: wet coast BC
seriously, your service manual says change it every 5000.
Seasoned HDF Member
Joined: Jan 2007
Posts: 20,616
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From: anacoco, la
i change my primary at each engine oil change, and with the clutch adjustment, it feels like a new bike every time.
change tranny at 10k, only because it's easy to remember to do it every other time.....
Road Master
Joined: Feb 2013
Posts: 805
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From: Colorado Springs, Colorado
I just change oil,transmission and primary once a year. $100 bucks all that cost me because I do it myself
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Joined: Nov 2013
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From: Santa Clarita
I keep it simple...when the odo rolls up on a number with four zeros behind it, I change the primary and tranny. I change engine oil with SYN-3 every three thousand. I'm from the school of thought that the real enemy of oil is dirt and other nasty stuff that gets into it, so I feel better at three grand.
Extreme HDF Member
Joined: Jun 2011
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From: Glendale AZ
I believe the OP knows what the service manual states, hes wanting everyones opinion and intervals. Me: 3-3500 engine, 2k Primary and 4-6k on Tranny. It's my bike and I'll do as I please. Primary splashes unfiltered oil around a powder keg compartment and the condition of the oil at just 2k reveals that. The tranny stays pretty clean so the interval even at 5k looks pretty good. The engine oil starts looking spent and watered down by 3000-3500 so that's when I change it.