I know I know, same old post, different day. Recently purchased 2010 Ford Taurus SEL with 100K miles (was a corporate car). I am a college student and currently drive 90% around town. But starting next August I will be commuting 40 miles per day. Option 1: RP 5w-20 w/ RP filter- 10K mile OCI's Option 2: Valvoline SynPower 5w-20 w/ RP filter- 7500 (or 5K, haven't decided) OCI's. I plan on keeping this car for many many years. Thanks Also, anyone know of shops that will drain tranny fluid and refill with the ATF of your choice? I'm wanting to use the RP tranny fluid but have no way to do a complete change without a machine.