Study Details
With 284 million registered vehicles in the United States, every one of them requires service. Vehicle maintenance, repair, oil change and tire revenue exceeds $372 billion, of which aftermarket providers capture 70% share while franchised dealers capture 30%. As the automotive industry continues to experience clear service shifts with improved vehicle quality, increasing mileage between required maintenance, and exploration into mobile service offerings, the competition for customer’s service dollars will only get more intense.
The JD Power U.S. Aftermarket Service Index (ASI) StudySM measures the service experience, including both in-warranty and out-of-warranty vehicles, to provide a comprehensive picture of customer vehicle service behavior throughout the ownership lifecycle. The ASI Study provides a numerical index ranking of aftermarket service providers in 3 segments: full-service maintenance and repair, quick oil change and tire replacement.
With 284 million registered vehicles in the United States, every one of them requires service. Vehicle maintenance, repair, oil change and tire revenue exceeds $372 billion, of which aftermarket providers capture 70% share while franchised dealers capture 30%. As the automotive industry continues to experience clear service shifts with improved vehicle quality, increasing mileage between required maintenance, and exploration into mobile service offerings, the competition for customer’s service dollars will only get more intense.
The JD Power U.S. Aftermarket Service Index (ASI) StudySM measures the service experience, including both in-warranty and out-of-warranty vehicles, to provide a comprehensive picture of customer vehicle service behavior throughout the ownership lifecycle. The ASI Study provides a numerical index ranking of aftermarket service providers in 3 segments: full-service maintenance and repair, quick oil change and tire replacement.
The Benefits
Study subscribers will be equipped to understand:
- How people choose to service their vehicles, and why.
- Where people choose to service their vehicles, and why.
- What factors contribute to a great customer experience… and what frustrates customers.
- How and why customers are retained vs. lost
- Which service providers are leading the industry, and in what ways.
Study subscribers will be equipped to understand:
- How people choose to service their vehicles, and why.
- Where people choose to service their vehicles, and why.
- What factors contribute to a great customer experience… and what frustrates customers.
- How and why customers are retained vs. lost
- Which service providers are leading the industry, and in what ways.
The Scope
Top performers are benchmarked based on survey findings that are segmented into three key categories: Full Service Maintenance & Repair, Quick Oil Change and Tire Replacement.
Service experience analysis includes:
- Initiation
- Facility
- Advisor Performance
- Quality
- Courtesy of Personnel
- Price and Value
- Time to Complete Service
Top performers are benchmarked based on survey findings that are segmented into three key categories: Full Service Maintenance & Repair, Quick Oil Change and Tire Replacement.
Service experience analysis includes:
- Initiation
- Facility
- Advisor Performance
- Quality
- Courtesy of Personnel
- Price and Value
- Time to Complete Service
2026 Key Dates
Fielding
December 2025 – February 2026
December 2025 – February 2026
Publish
April 23, 2026
April 23, 2026
Press Release
April 28, 2026
April 28, 2026
Press Release & Award Information
JD Power will issue a national press release highlighting key findings and top-to-bottom rankings from the study. The brand(s) that rank highest in each award-eligible segment and meet predetermined award criteria will have the opportunity to enter into a licensing agreement through the JD Power Awards Program, which requires subscribing to the study as a prerequisite. Entering into a licensing agreement provides top-ranked brands with the valuable opportunity to market their award-winning performance. As the trusted symbol of excellence, JD Power Awards enhance brand perceptions, drive consumer preference, and differentiate awarded brands in competitive marketplaces.
Read the latest Press Release >
Learn More about ASI Awards >
Learn More about all JD Power Awards >
Find Out about JD Power Performance Reports >
JD Power will issue a national press release highlighting key findings and top-to-bottom rankings from the study. The brand(s) that rank highest in each award-eligible segment and meet predetermined award criteria will have the opportunity to enter into a licensing agreement through the JD Power Awards Program, which requires subscribing to the study as a prerequisite. Entering into a licensing agreement provides top-ranked brands with the valuable opportunity to market their award-winning performance. As the trusted symbol of excellence, JD Power Awards enhance brand perceptions, drive consumer preference, and differentiate awarded brands in competitive marketplaces.
Read the latest Press Release >
Learn More about ASI Awards >
Learn More about all JD Power Awards >
Find Out about JD Power Performance Reports >
2026 Profiled Brands
Tire Replacement
Belle Tire
Big O Tires
Costco
Discount Tire
Express Oil Change & Tire Engineers
Firestone Complete Auto Care
Goodyear Auto Service
Jiffy Lube
Les Schwab Tire Centers
Mavis Discount Tire
Meineke Car Care Centers
Midas
Mr. Tire Auto Service Centers
NTB
Pep Boys
Sam's Club
Tires Plus
Walmart
Full-Service Maintenance & Repair
Belle Tire
Brakes Plus
Christian Brothers Automotive
Discount Tire
Firestone Complete Auto Care
Goodyear Auto Service
Les Schwab Tire Centers
Mavis Discount Tire
Meineke Car Care Centers
Midas
Monro Auto Service and Tire Centers
Mr. Tire Auto Service Centers
NTB
Pep Boys
Tire Choice Auto Service Centers
Tires Plus
Tuffy Tire & Auto Service Centers
Quick Oil Change
Express Oil Change & Tire Engineers
Grease Monkey
Jiffy Lube
Take 5
Valvoline Instant Oil Change
Walmart
Tire Replacement
Belle Tire
Big O Tires
Costco
Discount Tire
Express Oil Change & Tire Engineers
Firestone Complete Auto Care
Goodyear Auto Service
Jiffy Lube
Les Schwab Tire Centers
Mavis Discount Tire
Meineke Car Care Centers
Midas
Mr. Tire Auto Service Centers
NTB
Pep Boys
Sam's Club
Tires Plus
Walmart
Full-Service Maintenance & Repair
Belle Tire
Brakes Plus
Christian Brothers Automotive
Discount Tire
Firestone Complete Auto Care
Goodyear Auto Service
Les Schwab Tire Centers
Mavis Discount Tire
Meineke Car Care Centers
Midas
Monro Auto Service and Tire Centers
Mr. Tire Auto Service Centers
NTB
Pep Boys
Tire Choice Auto Service Centers
Tires Plus
Tuffy Tire & Auto Service Centers
Quick Oil Change
Express Oil Change & Tire Engineers
Grease Monkey
Jiffy Lube
Take 5
Valvoline Instant Oil Change
Walmart
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JD Power studies, products, and services are available for purchase. If you’re interested in subscribing to a JD Power study or becoming a client, please fill out the form, and we'll be in touch. Questions? Click here to find the answers to frequently asked questions.
If you’ve received a JD Power survey and have questions or comments, please contact us here.
For all other inquiries, you can contact us here.