What type of oil is used in a 1997 Harley Dyna Glide?

Genereally 20w - 50...this weight also mentions the temperature being above /below 40 degrees. Weight is good for above the 40 degree temp. Below it, it is suggested to change the weight to 10w

• 40.

I started using coventional 20w - 50 and now use synthetic.