Wow you folks were right about Synthetic

[ASTIG]

...if you plan to keep oil in there for about 6000 mi or more I suggest replacing the filter every 3k mi and just topping off.

And just how do you replace the filter without changing the oil???

J

remove the filter. replace with a new filter. top it off. easy enough?

you dont have to remove the oil pan drain plug

[BlankMan]

Got it - Just seems like taking a shower without changing your underwear, y'know? Kinda defeats the purpose...

J