Lube and oil change services, car detailing, transmission repair, fuel systems and air conditioning services Sterling Va and serving Ashburn and all of Loudoun County!!!


Potomac Falls Express Lube & Carwash is the only woman-owned fast lube business in Virginia.  Majority-owner Pat Wirth has been in the industry for over  twenty-five years.  She is President of the Regal Center business owner’s association, is a member of the Board of  Directors of the international fast lube trade association, Automotive Oil Change Association (AOCA) and currently serves as its President.  She frequently contributes articles to the leading industry magazine, National Oil and Lube News.  Pat is active in the Countryside Leadshare group that is part of the Loudoun County Chamber of Commerce and regularly participates in Sterling Woman activities.  Pat and each of her employees are either AOCA certified managers, technicians or both.

Mission Statement

Potomac Falls Express Lube & Car Wash’s mission is to provide the Loudoun County community with professional, convenient automotive preventive maintenance, detailing and car wash services in keeping with our Sustainability Plan that focuses on Economic Success for the business and the community; Social Responsibility to employees, customers, and the community; and Environmental Responsibility that respects life and natural resources. Potomac Falls Express Lube & Car Wash is committed to technical excellence, providing superior customer service and educating customers and the community about automotive preventive maintenance best practices. Our AOCA certified technicians partner with customers to ensure their vehicles are properly maintained to keep them safe and prolong their life using eco-friendly products, services and practices. Philanthropically minded we support numerous Loudoun County non-profit organizations, the Red Cross, active and retired military and the National Breast Cancer Foundation. 

Professional Service at Your Convenience

Since 1997 Pat and her staff have been providing automotive preventive maintenance to the Loudoun County community from its Regal Center location using state-of-the-art equipment and a POS system that keeps track of all services.  Pat is committed to building long-term relationships with her customers by becoming partners with them to extend their vehicle’s life and keep it safe with proper preventive maintenance.

  • Lube is open 7 days/week
  • Car wash is open 24/7
  • No appointment necessary
  • Entire crew is professionally trained and certified by the Automotive Oil Change Association
  • All services and products are warranted
  • All parts and products meet or exceed manufacturer’s requirements to maintain new car warranty
  • All oils are API-approved

Protecting the Environment

Environmental stewardship has always been a top priority; in fact, Pat Wirth was the first lube operator in Northern Virginia to recycle oil filters nearly two decades ago.  We engage in eco-friendly practices by using environmentally recognized best practices and eco-friendly services and products.

Helping the Community

Potomac Falls Express Lube has supported the community from the day it opened its doors with charitable donations and hundreds of sponsorships for local organizations and events.  It also supports its employees with on-going training and educational opportunities.