SAE 20w50 Heavy Duty Motorcycle Engine Oil by Spectro.

The ultimate synthetic petroleum blend motor oil designed specifically for use in Harley V-Twin engines. Spectro’s proprietary combination of world class Group IV synthetic lubricants, superior base stocks and advanced anti-wear additives provide lower consumption rates, extends component life, and reduces wear. Exceeds all known OEM and Harley-Davidson warranty requirements.

• API SF / SG – CD / CG-4