The 20,000-mile service included replacing the air conditioning filter, an oil filter insert, an o-ring, an aluminum seal ring, a screw plug, solvent, cabin air filter, wiper blades, a fuel system cleaner, rubber care, Zep cleaner, and the engine air filter. Additionally, a 20-point review of the car was conducted.
This video details the cost breakdown of the second annual service for a Porsche 911 GTS (991.1). The speaker, Joe Hutchinson, discusses the various services performed, including a 20,000-mile service, tire changes (winter and summer), and headlight adjustments. He also shares his observations on tire wear and condition.