All 3 at 5K.
Think about it. Only the engine oil is filtered. The other two typically have trace metals in it. Only 2 quarts more. I do my own, and stock up on oil when I find a sale. I keep a few years worth in the garage at all times. Gotta do something with it!

 

Oil and Filter 4000 to 5000 miles
Primary and Trans yearly or 20,000 miles

 

Motor oil every 2,500 miles, primary every 5,000 miles, tranny every 10,000 miles. Like clock work.

One of my dealerships offers a "LIFETIME MAINTANCE PROGRAM" when buy your bike. (For the original owner only) In 2009, I payed $1500.00 for this package.

I basically been getting my maintance done for free since about my 12.5K service!!!






YB

 

I change the engine oil at 2500-3000 and the primary and tranny every other change (5000-6000). Lucas synthetic MC oil and full synthetic stabilizer

 

I follow what it says in the owners manual.

 

Engine Oil every 5000 miles
Primary and Tranny every 10,000

Mobile 1 V-Twin in all 3 holes!

 

engine oil 5k, primary 10k, tranny 20k. just like the manual says. To change earlier than that unless you have some severe usage is not advantageous.

Modern oils are designed to go further. But is so little cost do what you like. full disclosure, I own exxon/mobile oil stock.

 

Engine at about 3500 miles. Others at the factory interval. My reasoning for this is due to the fact that my bike runs slightly richer than stock and as a result I figure I'm getting more hydrocarbons in the oil than I would be otherwise.

 

Change all at 3k miles, adjust clutch all for about $120. That's 7 qts oil ( primary 38 oz oil ) 1 filter, gaskets, a six pack of cold brews, some music and polishing the steed. Cheap insurance..

 

Harley Davidson says the engine oil and filter every 5,000 miles, the primary oil every 10,000 miles and the transmission oil every 20,000 miles.
I do the engine oil and filter every 5,000 miles with full synthetic oil and the primary and transmission oil both every 10,000 miles with full synthetic oil.