I wonder why that spec sheet specifies the same coolant for I4 and V6 models. It makes sense to me that SI-OAT is specified for 4 cylinder models, but for the V6, I would think Toyota Pink is the proper coolant. I can't find a definitive answer either. I hope there is greater clarity when it comes time for me to change the coolant.
Life was so much easier when it was all green.