I run 5w30 Mobil 1 in my 04 Tacoma at 5k OCI. Been doing that since it was brand new and never had any engine issues. 5w30 SN is spec for year round protection in the Tacoma's. I would also recommend picking up an OEM Toyota filter. They seem to work better for me, especially at startup.
2013 Honda CRV: Honda Genuine
2004 Toyota Tacoma: Castrol Syn Blend
1997 Honda Civic: Castrol Syn Blend