I'd like to start out by thanking all the members here who have been a great help already. I recently purchased a 2003 l3000dt with 225 hrs on it. I like to know when my service was done so I greased everything and checked all fluids. I'm curious as too what oil, transmission and coolant you guys recommend. I use rotella t6 full synthetic in my trucks and other tractors. ( unless they leak a lot) then its rotella standard. My local dealer said ubt Kubota fluid is $110 / 5 gallons. That's way higher than the ambra multi g I've been using in nh mower. What fluids do you guys use. Thanks. And am I being too anal about the trams needing changed??