As per info found in the XL Forum, Sunoco makes HD OIL
might want to recheck your findings . im pretty sure citgo makes harley oil . sunoco made it years ago . not anymore .
Sunoco, makes Harley Davidson engine oil
Black
Harley Davidson recommends it (Citco I think) but No!!! Just use the correct weight for your motor, time of year and how you ride it!
Champion
20w50 oil in the motor
20w50
Under the motor
if you are not a dealer, then you will have to go to a dealer.
no!
Use HD oil only and if you can afford use synthetic
amsoil 10w 30 the best money can buy
Standard 10w-30 motor oil goes in a 200 Harley Davidson 883 motorcycle. The oil is used by the engine to both lubricate internal components and cool them down.