List each ASE certification individually with the area designation: A1 through A9, L1, L2, L3, L4 for advanced, and C1 for service consultant. Master Technician status (all A1-A8 plus L1 held simultaneously) should be prominently noted as it's a significant professional distinction. Include renewal dates — ASE certifications require recertification every 5 years.

Flag rate efficiency is the primary productivity metric in automotive shops. 'Consistently achieved 115-125% efficiency on flat-rate schedule' shows above-standard productivity. Customer satisfaction scores (CSI) may also be relevant for dealership roles where manufacturer scores affect dealer incentives and bonus eligibility.

Reference specific diagnostic challenges you've resolved — intermittent electrical faults, no-start conditions with multiple contributing factors, or complex driveability issues. Naming the scan tools and techniques used (oscilloscope diagnostics, network communication testing, fuel trim analysis) signals diagnostic depth beyond basic code reading.