How often do you guys change your transmission fluid? How often is it recomended to be changed? What Tranny fluid do you use?

Jay

 

This is all covered in your owners manual.

 

This is what I go by for my 04 (the manual). I don't use Harley oil as I put different oil in tranny, engine and primary. I change all the oils at the same time to get it over with.

 

Yea the manual says to change every 5000 miles, well I use synthetic oil and it's still brand new at 5000 miles.

Jay

 

Normally I would change all three at the same time also but, the tranny oil still looks new after 5000 miles.

Jay

 

I change all three at the same time. Why, cause I'm funny that way, its cheap, easy and it can't hurt the bike. I use the Harley tranny/primary fluid and split the bottle in half. Then I add 25% (5 oz on and evo) Lucas oil stabilizer and 25% (5 oz) Mobil1 synthetic gear lube. Works for me.

 

I changed everything at 4,000 yesterday, tranny and primary looked very clean, now it looks cleaner.

 

I think my service manual for my 05 states 20K for primary and tranny oil. I do it every two oil changes or once a year. I am using Amsoil 20w50 right now... gonna try redline gear oil and primary oil next change.

 

My 04 serivce manual says to change all three every 5000 miles!!!

Jay

 

I change all three at 5000 miles ..or a lil sooner ...I use amsoil 70/140 in trans.....amsoil atf in primary ..20/50. In engine ...works for me