New air filter, cabin filter and cleaned the throttle plate on the Highlander, oil change tomorrow after work. I'm trying to decide whether I should change the transmission, differential and transfer case oil. Toyota only recommends it if you tow, which I don't and my commute is early enough that I miss all the stop and go-bumper car antics of my fellow motorists. It's basically a 45-50 mph drive for an hour each way.
I guess I probably should, but I've always felt over maintaining a vehicle was just as detrimental as under maintaining. I guess I'll just overthink about it some more..