Heavy Duty Platinum Full Synthetic Engine Oil. 20w50 1 Gallon Bottle (3.786ltr). Fits Big Twin 1984up

* 1 U.S. Gallon / 3.786 Liters.

* Spectro Heavy Duty Engine Oil is a superior motor lubricant designed specifically for use in American-made Harley V-Twin engines.

* Meets all known OEM warranty

* Engineered specifically for Harley-Davidson A.P.I. SF/SG # rated.

* Replaces OEM # 62600158