Are you seriously just trolling around? How are they not comparable?
5w-30 is an oil that has the viscosity of a 5 weight oil when it’s cold and has the viscosity of a 30 weight oil when its warm
SAE ratings says 5 is THINNER THEN 30. That’s the point. :facepalm
The lower the viscosity number, the thinner a fluid is.
If oil is easier flowing when warm it should have a LOWER number.
Edit: Do you not see how that’s an issue?