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Diesel Mechanic

Posted: 07/12/2026

Full job description

General Summary: Mechanics inspect, troubleshoot, diagnose, service, and repair a diverse range of automotive equipment (including diesel engines) using a total-vehicle approach. Mechanics complete vehicle repair and routine maintenance needs for all fleet vehicle systems and components for Cyrus and Newcomb Oil Co. company vehicles.

Essential Job Duties:

  • Perform DOT vehicle inspections and make repairs to ensure compliance with DOT regulations.
  • Estimate costs for labor and/or materials.
  • Install vehicle parts and accessories.
  • Repair worn, damaged, or defective mechanical parts.
  • Rebuild/Repair defective engines or engine components.
  • Rebuild/Repair non-engine automotive or vehicle components.
  • Routinely change tires on tractors and trailers, large commercial vehicles.
  • Test electrical circuits or components for proper functioning.
  • Test mechanical systems for proper functioning.
  • Operate a forklift.
  • Record information about parts, materials, and/or repair procedures.
  • Rotate weekly on-call after hours status with other mechanics.
  • Other tasks assigned by Supervisor.

Minimum Qualifications:

  • 3 years’ experience or equivalent education.
  • Automotive Service Excellence (ASE) certification desired.
  • Ability to work on all vehicle systems and components as needed, including diesel engines.
  • Familiar with mechanical concepts, practices, and procedures.
  • Valid Class A CDL license, or willing to obtain one.
  • Professional appearance and a positive attitude.
  • Team player, honest, hardworking, and excellent attendance.
  • Safe Driving Record
  • Able to pass a DOT pre-employment drug screen and submit to post-accident and random drug screens once employed.
  • Basic Computer Skills.

Physical Requirements:

  • Able to work in indoor shop with varying temperatures, occasional outdoor work as needed.
  • Some travel may be required, typically day trips only.
  • Sitting, standing, walking, bending, stooping, and climbing to the top of a tanker.
  • Must be able to lift up to 50lbs.

FiveStar is an Equal Opportunity Employer.

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Equal Opportunity Employer
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