You are going to think I am crazy, but since the 60K service (look at your manual) is such an inportant maintenace interval, I would spend one day and drive to the Lexus dealership and have the 60K service done. It won't be cheap, but it will pay off in the end. Very good preventive maint.
I have done all the 30K, 60K, 90K, 120K, and so on, services on both of my Honda's, my Acura, and both of my Lexus'. The reason I think it works is because my one Honda has 213,000 miles and runs like new, and my other Honda has 188,000 miles and runs like new, and my Acura has 93,000 and runs like new too!
:D