Hello I bought a new 2016 harley freewheeler 103 from u last December i want to change the oils can I use mobile 1 20w50 full synthetic in motor, transmission, and primary thank u

As long as it is an oil designed for use in an Air cooled engine you can use it in there. Also in the trans as long as it has a friction modifier for a wet clutch. I run Syn3 in the engine and Belray in the trans and primary of every Harley I have owned. My 16 Street Glide included. I won't use anything else. Both can be bought at Lakeland Harley-Davidson.

Yes

Call the dealers service department I guarantee they will have the correct answer for you and what the next steps are to take

Call the dealer

you definitely want to run an oil designed for air cooled motorcycles , i bought some from napa i forget what brand worked great in my street 750. the dealer isnt allowed to tell you tobrun anything but harley oil due to sales and liability issues.

Yes, thats a perfect oil for it.

Definitely call the service department