LOF,hours or miles on your WR450

7 replies to this topic
  • BigVthumper

Posted December 26, 2008 - 10:25 AM


Do you track the hours or mile between oil/filter changes? What seems to work best and how many (hours/miles) between? Thanks

  • alfie

Posted December 26, 2008 - 10:52 AM


I like to change my oil and filter after every race, or if im just trail riding after a full days riding. oil and filter changes imo are just cheap insurance pro longing a engine rebuild.

  • WR450FGreg

Posted December 26, 2008 - 12:30 PM


I have two magnetic sump plugs and change my oil and filter every 3 rides.
That usually equates to about 200 - 250 miles or so.


  • SXP

Posted December 26, 2008 - 12:38 PM


200-250 miles on the 07, and ~300 miles on the 99s (they hold about 0.5 litres more).

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  • William1

Posted December 26, 2008 - 01:07 PM


I go by hours. I am a slow rider and do not ride hard so I change it every ten hours. If I raced or had any semblance of being fast or hard on the bike, I'd probably change it every five hours. When riding off road, your speed is dependent on the conditions. You might spend a day doing difficult single track and barely cover 50 miles. Another time, riding fire roads, never going slower than thirty, covering 200 miles. Same number of hours, much different mileages.

  • Mark_NZ

Posted December 26, 2008 - 07:02 PM


I do mine (06 450) every 10 hours (soft trail riding by aging *****)

The oil comes out looking like new - should I leave it in longer?

  • WR450FGreg

Posted December 26, 2008 - 10:34 PM



The oil comes out looking like new - should I leave it in longer?

You are changing it while it's still hot straight after a ride aren't you?
If parked for a length of time the oil can clear to a certain degree, any foreign matter suspended in the oil will settle to the bottom of the cases.

If you are changing it hot then I would definately think about extending the service intervals.


  • JSanfilippo

Posted December 28, 2008 - 09:25 PM


100-200 miles depending on conditions. When its cold and there is little to no dust I'll stretch it out. When it gets hot (90f +) and dusty I'll cut the intervals short. Cheap insurance IMO.


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