Speedometer Test | Essential & Deluxe

Performed by professional mechanics, a "dyno" test places the vehicle on rollers, allowing it to "drive" at high speeds while stationary. The technician records the dashboard speed versus the actual wheel rotation speed to identify discrepancies.

A traditional, low-tech method involving a measured mile marker on a highway. Driving at a constant 60 mph should take exactly 60 seconds. A faster time indicates the speedometer is reading low, and vice-versa. speedometer test

If a driver receives a speed-related ticket, a calibration report can prove the speedometer was inaccurate, often required to prove the exact speed in court. Performed by professional mechanics, a "dyno" test places