I need to service my bike and just want to see what everyone else thinks about which oil is the best. Who and what do you use and suggest?

 

The search function will yield hundreds of threads on this subject each providing their own opinion, but I'll save you a lifetime of reading and say that the best oil is what YOU think is best.

 

Best ever answer to an oil thread.

This should help you find a few opinions. https://www.hdforums.com/forum/searc...rchid=24643509

 

I find that KY works great for lubricating my piston.

 

Your owner's manual will give you the best advice as to what weights they recommend based upon the temperature for your location. You can pick your favorite brand of oil and as long as it is up to Harley's specs. As far as I know Harley owners have been running everything except monkey **** in their motors and to the best of my knowledge they all will work. Every swinging Richard has their own personal favorite when it comes to fluids, so you will absolutely never, ever, get a consensus on what is the best or the worst on a motorcycle forum.
Just pick one that meets the motors needs and stick with it until you are convinced that something else will work better or you get bored.

 

Dickey has spoken! Get the Jelly! Seriously google Schaeffer lubricants and they are supposed to have a premium oil suitable for our V twins, then post with you results.

 

Astroglide has a higher sheer factor.

 

Yeppers... Keep the piston happy and dont buy any rings

 

Delo 400 LE 15/40

 

Like others have said, there will always be different opinions. Myself, I use Mobil 1 V Twin 20w-50 synthetic in motor, Harley Formula + in primary, and Mobil synthetic gear lube in tranny.