O'Reilly Auto Parts in Oklahoma City is a helpful and knowledgeable store. The staff is super nice and mostly know their stuff, often saving customers hundreds of dollars. They are very helpful and know what they're talking about, assisting with vehicles and even showing how to change parts. The store is clean and usually in stock, ordering any unavailable parts for quick delivery. It offers services like free battery testing, wiper blade installation, fluid recycling, and Check Engine light testing. The location also resurfaced brake rotors and has a free Loaner Tool program. Customers find the people truly helpful and the best, making it their first choice for parts and reliable assistance.