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Expert Auto Repair Services in Oklahoma City
At Milex Complete Auto Care - Mr. Transmission - Mr. Transmission, we are proud to serve Oklahoma City drivers with over 100 years of combined experience in transmission repair and auto maintenance. As a veteran-owned business, we prioritize straight talk, fair pricing, and solutions that address actual needs without unnecessary work. Our nationwide network affiliation provides customers with a warranty honored at over 120 locations, ensuring reliability whether commuting locally or traveling across state lines.

We specialize in comprehensive auto care, from routine oil changes to complex transmission diagnostics, all delivered with a commitment to honesty and community values. Our team takes time to explain issues clearly, offer transparent options, and ensure every repair meets the highest standards of quality and durability. Located in the heart of Oklahoma City, we treat every customer like a neighbor, not just another ticket number.
Services
Transmission Repair Brake Service Diagnostic Testing Oil Changes Clutch Repair CV Joint Service Engine Repair Cooling System Preventative Maintenance Emission Repair
Highlights and features
  • We have over 100 years of combined experience in transmission and auto repair.
  • Veteran-owned with small-town values and transparent pricing.
  • Honest service that prioritizes necessary repairs without upselling.
  • Nationwide warranty coverage honored at 120+ locations.
  • Complete auto care under one roof for all makes and models.
What people say
Honest service Expertise Exceptional customer care Transparent pricing Nationwide warranty
Services
Transmission Repair
Our transmission specialists diagnose and repair complex issues for all vehicle types. Using advanced diagnostics, we identify problems ranging from fluid leaks to internal component failure. Services include complete rebuilds, clutch replacements, and torque converter repairs. Technicians follow manufacturer specifications to ensure optimal performance and longevity. Covered under our nationwide warranty for added peace of mind.
Brake Repair
We provide comprehensive brake system inspections and repairs for safety-critical components. Services include pad replacement, rotor resurfacing, caliper servicing, and hydraulic system diagnostics. Our technicians use precision tools to measure wear and identify potential failures before they occur. Emergency brake adjustments and ABS system diagnostics ensure complete stopping power reliability.
Diagnostic Services
Modern vehicle diagnostics require specialized equipment and expertise. Our shop uses professional-grade scanners to interpret check engine light codes and sensor data. We perform live data stream analysis, component testing, and electrical system evaluations to pinpoint issues accurately. This approach prevents unnecessary part replacements and ensures complete problem resolution.
Preventative Maintenance
Following factory maintenance schedules preserves vehicle warranties and prevents breakdowns. We perform oil changes, filter replacements, fluid exchanges, and multi-point inspections according to manufacturer guidelines. Our service reminders help track upcoming maintenance needs. Detailed records document all completed work for future reference and resale value.
Cooling System Repair
Our cooling system specialists address overheating issues and component failures. Services include radiator repairs, water pump replacements, thermostat installations, and coolant flushes. We use pressure testing equipment to identify leaks and perform comprehensive system inspections. Proper maintenance prevents engine damage from heat-related stress.
People
Roman Combs
Owner
Veteran business owner with extensive automotive industry experience. Committed to community values and honest repair practices. Leads team with focus on technical excellence and customer satisfaction.
Dan Schrock
Master Certified Lead Tech
Expert technician specializing in complex diagnostics and transmission repairs. Demonstrates exceptional problem-solving skills and technical knowledge. Provides accurate assessments and quality repair workmanship.
Curtis Davis
Service Advisor
Customer service professional coordinating repair processes. Communicates technical information clearly and ensures client needs are met throughout service visits.
Questions
What transmission services do you offer?
We provide complete transmission repair, maintenance, and diagnostic services including fluid changes, clutch replacements, and complete rebuilds for all vehicle types.
Do you honor warranties from other repair shops?
Our nationwide warranty covers work performed at this location only. We cannot honor warranties from other independent repair facilities.
Can you service older vehicle models?
Yes, our technicians have experience with both modern and classic vehicle systems. We maintain specialized tools for older transmission and engine designs.
What brake repair options are available?
We offer complete brake system services including pad replacement, rotor resurfacing, caliper rebuilding, and ABS system diagnostics for all makes and models.
Do you provide loaner vehicles?
While we don't offer loaner cars, we provide complimentary local rides and shuttle service during your vehicle's repair period.
What maintenance records do you keep?
We maintain detailed digital service records documenting all completed repairs, parts replacements, and maintenance performed at our facility.