My motor oil questions

[O'Rattlecan]

So, I know I should probably be using different oils for different seasons, but does anyone know what would be ideal for a 351W that has 180,000 on it?

BTW: I found a great deal on Amsoil.

Ryan

 

[6L PWR]

BTW: I found a great deal on Amsoil.

OMG! You are SOOOO in for it when Beach sees this post!!