Farmer

Just looked at the service manual for 2018-19 Strikes. All I could find was SAE-80 GL-4 for the final gear and SAE 80 GL-5 for the differential. I know Bel-Ray and VP Racing make a nice semi synthetic, I've even used them in Polaris. If your still having trouble with water in the crankcase, some marvel mystery oil will save you some oil changes. I've taken completely swamped rigs and had them water free in 3 changes.