I am the new owner of a 2009 Mazda 6 with the 2.5 liter MZR 4-cylinder engine and 5-speed FS5A-EL automatic transmission. I bought this car for my daughter even though it has 190,000 miles, because it appears to be in immaculate condition. The previous owner furnished service records for his term of ownership (he was the second owner), since 40,000 miles, and the car has had regular oil changes with either full synthetic or syn blends of varying brands. However, it appears that the car has has only one documented trans fluid service. At 130,000 miles, the fluid, probably factory-fill from the original owner, was flushed and replaced with "Gulfpride Multi-Vehicle ATF DEX VI D." The car runs and shifts great, but I'm wondering what to do with regard to transmission service. What do you guys recommend? Thanks!