Dumb GC Question

[M Smith]

Sorry folks, I'm just full of dumb questions this month.

'06 Toyota owner's manual simply advises to use an "ILSAC multigrade oil" in the 5W-30 grade. There's no reference to API SM, or the like. I'm assuming Toyota means a GF-4 5W-30?

Here's my second dumb question.

The local Auto Zone has in stock a couple cases of GC but it must be a little old since it's all SL oil. Do you folks think this GC would be okay in the '06 Toyota?

Thanks.

 

[bruce381]

SM is USA only ILSAC is "international" Our SM is good but to have a SM and GF-4 the SM needs more AO.
bruce