Source: BTS.

Fuel Costs Versus Annual Vehicle Mileage, United States, 1960-2000

There is a highly concordant relationship between the annual mileage traveled per vehicle and fuel costs. 40 years of empirical evidence in the United States underlines that higher fuel costs are linked with lower levels of annual miles traveled per vehicle. However, the relationship is non-linear, implying diminishing impacts of fuel costs increases over the average annual miles traveled. Fuel costs higher than $0.16 per vehicle-mile are not linked with any significant decrease in the average annual miles traveled per vehicle.