Was just wondering how often everyone changes there primary and tranny fluid. Changed the primary and tranny oil at the 1000 mile service and the 5000 mile check up and just wondering if people also change it with the oil change that I do myself between service check ups. Thanks for the advice.

 

I change my crankcase, primary and transmission oil every 2500 miles. Some folks will say that's too often but I don't care.

 

I change oil and filter every 2,500 miles, and primary and trans. every 5,000. I think the oil takes more of a beating because of heat, condensation, carbon, etc. so I do it more often.

HD says 5,000 for everything.

Regards,

Bill

 

I did mine at 100 ,1000 and 2500 miles all three and do all at 2500 mile intervals with filter all the time. Cheap insurance IMHO

 

Read the manual, but listen to the folks on here. More often is probably better.

 

oil every 2500 primary and tranny every other oil change same as bill only different!

 

I just follow what the manual says, it works for me.

 

I put roughly a 200 miles a year on my 2000 Fatboy. Can I wait until I have put 5,000 miles on since my last primary fluid change or do I have to change the primary fluid every year?

 

I have 86K miles on my 09 Nigh Train and change all 3 holes every 5K miles and have zero issues with the he engine.

 

Don't know what year you are referring to but 07' manual says oil @5000, Primary @10,000 and trans @ 20,000.