Being overly cautious ~ I've always just changed all three holes @ 2500 miles. Takes about an hour. Knowing all would be fine for many more miles, I've always felt it's cheap maintenance and a good way to keep an eye on all the scary parts. Been using Amsoil for years for a reference. But my oil choice is not the issue. Any one else crazy like me?

 

I change the engine and primary between 3 and 5k, and the tranny at 10K miles.

 

I gonna do all right before I put away bike for winter using schaeffer oil..
Cuz that's what my Indy sez..then at intervals he sez

 

5000 miles on the engine.. haven't had to do the transmission because i've had the clutch housing cover off the past few years, so i had to drain/replace the oil anyways. Primary i've only done once, will probably do it next year.

i basically go by the time table in the back of the owners manual

 

all 3 holes every 5

 

I change according to Harley recommendations.
I also change according to manufacturer recommendations on my other vehicles which aren't highly modified from stock, and are basically used as the manufacturer anticipated.

 

Primary and tranny every 5,000, engine oil every 2500.

 

All fluids with SE Synthetic at 5000 mile intervals.

 

engine oil , once a year (2-6K depends on which bike)


HD /SS tranny 2-three years, primary same.


Honda one Hole , once a year.


Rotella 15-40 in all holes, on all four bikes

 

This is my plan as well. On my Heritage I only get between 2500-3500 miles a year, but I always put it away with all clean fluids.