Alright alright the results are in,
1. 15w-40 -Rotella Perfect amount of slip, Blue springs 2 Turns out. 17x45 gearing, Case matched TCCD 70cc, NOS 15mm Bing and intake Tecno Boss. Excellent up hills, excellent take off. Hits 50 mph.
2. 5w-30 -Pretty good, almost as good as Rotella, But it lacks the slip needed for take off on hills. Can’t see any use for it really given how good Rotella has been.
3. ATF -We all know what this stuff entails. Grabby grabby= Slow Moped