I have put on about 12k miles this year on my 2007GX since purchasing in January 2015 with 41k miles. First oil change was at the local Toyota dealership and then I did the second myself with a Toyota oil filter and Mobil 1 synthetic cause that is what I always used in my 80. Got me thinking about future fluid changes and was wondering what you folks prefer. I am only needing motor oil now but will have more fluids to exchange in the next year.