Starter Relay Amperage

I still say this is nonsense unless you can trace it back to OEM. Anybody can put a spec on anything. That does not mean it's true. Ask yourself why would stick vs auto need different current ratings?

I bet both of those came from the same Chineseaoationized sheds with the same exact contacts internally

Well it turns out the 30 amp has a different terminal for the solenoid. I would enjoy popping off the cap to see the size of the winding. So I ordered the "20" amp..