Originally Posted by Steve47
I purchased a 2010 Ultra about 2 weeks ago and wanted to change all the fluids. Based on what I've read in this forum I wanted to use Amsoil ATF in the primary to improve the shifting and finding neutral.
I noticed today what appears to be a small leak from where the stator wire runs through the front of the case. It appeared after a short ride. My question is could I have simply overfilled the primary? I put the entire quart in when filling or could this be from some difference in viscosity that allows the fluid to seep through the rubber connection? The dealer had used 20W50 in the primary at the last service.
Any help is appreciated.
First the good news. The ATF is not the cause of the Stator wire leak. It just happens some times not madder what you run.
The primary is not that fussy .
ATF is a bit thin and you wet clutch is NOT an automatic.
Any good 20/50 engine oil syn or not will work.
The Stuff about syn being bad for the clutch is bull.
Any good Engine oil will work fine, so will Spectro primary oil, Red line primary oil or any of the ones offered.
Proper level is more important than what you run in it. Along with proper clutch adjustment.
Run what you want if it helps you sleep but millions of HD miles make it clear it all a waste of time there is no magic secret lube of oil thats going to make you HD do anything any different.
And amsol will not bring it back from the dead. .
I put 20-60K a year on my HD.
I use syn engine oil because it make me feel better with the heat, I have friends that do not and their bikes do just fine.
I run 20/50 in primary so I do not need to keep different lubes around, works just fine.
I change engine oil every 5k, primary every 10 and trans every 15-20K. And never have had one major malfunction.
Surprise changing oil and lube every time you turn around will not make your HD last for ever.
Fill the primary and ride.
Fixing that leak is a pain. My 2011 is in now getting it done under warranty.