Tire Customer Satisfaction Index
The J.D. Power Original Tire Customer Satisfaction Index Study examines
owner evaluations with tires that were originally fitted in the vehicle
at the time of new car delivery. This does not necessarily mean original
equipment tires since some buyers have a tendency to change tires
at the time of delivery. The overall performance is assessed on fifteen
attributes, grouped into four factors: appearance, wearability, traction,
and highway performance. A higher score reflects better quality.