Long time lurker, etc., etc.

I have an '04 Boxster S that is in dire need of an oil change - not due to mileage, but time. I bought the car at Rusnak in Thousand Oaks, which is over an hour away from where I live (Palmdale). Any recommendations closer to my area? Kinda protective of my car, so if it's best to go to a dealer, I'm happy to do that.

Thanks in advance for any suggestions.