I recieved a letter from toyota today saying it was time for my 30,000 mile service work. Does anyone know what this includes??. they want 300.00 dollars to do this service and it seems kinda high. What are your thoughts on this. It also says the tranny fluid should be changed every 15,000 miles and this too seems like it may be a waste of money. My f-150 is 40,000 miles before a change is needed. thanks. :?: