Across U.S. metros, diesel mechanics typically earn $11,470 more a year than auto mechanics (23%). In the 388 metros where BLS publishes both, auto mechanics earn more in 8 and diesel mechanics in 380.
| Auto Mechanic | Diesel Mechanic | |
|---|---|---|
| Typical metro median pay | $48,885 | $60,355 |
| Lowest metro median | $21,920 | $30,510 |
| Highest metro median | $77,840 | $88,980 |
| Job growth 2025–35 (U.S.) | +5.0% | +3.6% |
| Openings per year (U.S.) | 66,200 | 24,400 |
| Self-employed | 15% | 6% |
| Typical education | Postsecondary nondegree award | High school diploma or equivalent |
| Typical training | Short-term on-the-job training | Long-term on-the-job training |
| Injury rate per 10k workers (U.S.) | 204 | 163 |
| Metros with pay data | 392 | 388 |
On safety, auto mechanics report more injuries that cause missed work (204 vs. 163 per 10,000 full-time workers, national 2023–24).
Pay: BLS OEWS May 2025 (typical = median across metros). Growth, openings, education, training: BLS Employment Projections 2025–35. Injuries: BLS SOII 2023–24.
Where auto mechanics out-earn diesel mechanics the most Our calculation
Gap in median yearly pay, same metro.
Where diesel mechanics out-earn auto mechanics the most
Gap in median yearly pay, same metro.
What each trade does
Auto Mechanic
Diagnose, adjust, repair, or overhaul automotive vehicles.
Diesel Mechanic
Diagnose, adjust, repair, or overhaul buses and trucks, or maintain and repair any type of diesel engines. Includes mechanics working primarily with automobile or marine diesel engines.
Compare one trade across two cities →