Phillips Diesel Service is a reputable provider of repairs and service for a wide range of diesel vehicles, from light duty trucks to heavy equipment. They are certified by FRA and ANSI/ASME, offering services such as oil changes, A/C, batteries, brakes, clutches, diagnostic scans, engine overhauls, transmissions, inspections, and hydraulic repairs. Customers have praised the mechanics' expertise and the business's customer service, though some have noted that the work can take a bit of time. Overall, Phillips Diesel Service is a trusted choice for diesel engine vehicle maintenance and repair in the Muskogee, OK area.