Remember old school Kendal GT-1? This specific formulation is their newest line of semi-synthetic motorcycle oils with 20w50 viscosity specifically designed for aircooled engines including V-Twin with higher synthetic % than Brad Penn Racing 1 20w50 motor oil. Meets JASO MA frictional performance requirements. Brad Penn has an average 9.0 TBN and plenty of ZDDP (anti-wear additives) to keep your engine both clean and well protected. Excellent High Temp High Shear Viscosity for all grades exceed Porsche's min 3.5 cSt HTHS vis @ 150C. For shipping outside the continental 48 states, please call us at 815-472-2939 to place your order.