Oklahoma City Auto Repair

Call Us: (405) 942-5523
Mon - Fri: 7:00 AM - 5:30 PM
Complimentary Performance Check
Our complimentary performance check can answer most performance related questions about your transmission
* Includes Fluid Check
* Road Test
* External Adjustment inspection
* Basic Diagnostics

Welcome to Milex Complete Auto Care - Mr. TransmissionOklahoma City, OK

When your car breaks down, you need someone you can trust. At Milex Complete Auto Care - Mr. Transmission in Oklahoma City, we've been helping drivers like you for over 100 years combined experience. Our veteran-owned auto repair shop believes in straight talk, fair prices, and fixing what actually needs fixing—nothing more, nothing less.

We're part of a nationwide network with locations across the country, which means your transmission repairs and auto maintenance come with a nationwide warranty honored at over 120 locations. Whether you're commuting around OKC or road-tripping across state lines, you're covered.

From your regular oil change to that transmission that's acting up, we keep your vehicle running strong—all in one place.

Serving Oklahoma City & the OKC Metro Area

Ready to get back on the road? Give us a call today!

Call Now

Milex Complete Auto Care Powered by Mr. Transmission BBB Business Review

Why Oklahoma City Drivers Choose Our Auto Repair Shop

Finding an auto repair shop you can actually trust feels impossible sometimes. Too many places see dollar signs instead of people. We see neighbors. At Milex Complete Auto Care - Mr. Transmission, you get honest answers, fair pricing, and repairs that actually solve your problem.

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Experience That Shows In Every Repair

Over 100 years of combined experience in transmission repair and auto maintenance means we've diagnosed just about every car problem you can imagine. We take time to figure out what's really wrong, explain it in plain English, and give you options - not pressure.

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Veteran-Owned With Small-Town Values

As a veteran-owned business in Oklahoma City, we believe in doing things the right way. That means treating every customer with respect, whether you know your way around an engine or can barely find the hood release. We're here to help, not judge.

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Honest Service You Can Count On

We tell you what's broken, what can wait, and what's just fine. Just honest brake repair, transmission diagnostics, and oil changes from people who actually care about getting you back on the road safely.

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Complete Auto Care Under One Roof

Transmission problems, brake issues, oil changes, clutch repair, auto diagnostics—we do it all for all makes and models. No bouncing between different auto shops. One team that gets to know your vehicle and keeps it running strong.

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Your Auto Repairs are Protected Everywhere

Our nationwide warranty covers your transmission work, brake service, and other repairs at over 120 locations across the country. Road trip to Colorado? Visit family in Texas? Your auto repairs are backed wherever you go.

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Part of Your Oklahoma City Community

We live here too. Our kids go to local schools, we shop at the same stores, and we want our neighbors driving safely. When you choose our OKC auto repair shop, you're supporting a local business that's invested in making Oklahoma City a better place to live and drive.

Tired of auto repair shops that don't treat you right? Call us today and see the difference honest service makes.

RELIABLE. TRUSTED. KNOWLEDGEABLE.

100+ Years as Trusted Professionals
FREE Performance
Check
Nationwide Warranty
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FREE Towing on All Major Repairs

What Our Customers Say

Always straight forward and truthful, I never feel like I am being taken advantage of and being a woman that is important to me. Highly recommend.
Sherri W.
5
I want to thank Roman Combs (Owner), Dan Schrock (Master Certified Lead Tech), and Curtis Davis (Service Advisor) for such a wonderful experience at Mr.Transmisision. I was on a 3000 mile road trip, passing through OKC, when my car began to overheat. It was the night before Xmas eve. They were open on Xmas eve to diagnose and fix my problem in a few ours. Never have I experienced such quality service and hospitality from a mechanic shop before. I can't praise them enough on thier abilities to solve my car troubles, and allow my road trip to continue. If it wasn't for Dan Schrock's expertise, we would had to cancel my trip, leave my car in OKC, and fly to my destination (New York), or fly back home (Southern California).I'm so thankful for their care, I've decided to send the garage a gift basket.
Kent C.
5
Once again, Roman, Curtis & entire crew provided the kind of exceptional car care & customer service I know I can consistently count on.
Jeff A.
5
Honest, Dependable, and Fair.First discovered Mr. Transmission / Milex via a mail out to my home a few years back.Have had my vehicles to their shop with very good results.They are Honest for sure. On an old car got a quote from them for a repair which they informed that it was time to retire the old worn out vehicle. I agreed with their assessment and replaced that vehicle.When they tell me that the vehicle will be ready it is not only ready but a dependable job on the repair work.On one of my previous visits, Had a battery issue that they were only going to charge me for 18 minutes of labor... The truck has had no more battery issues since then. Now that is a very honest repair shop.This is a business very worth looking into when you need a vehicle repair done.
Bill Goodhead
5
Roman & his team did a superb job of taking care of our vehicle needs! Friendly, caring, knowledgeable! Checked out vehicle, communicated findings, & fixed everything to our complete satisfaction.
Jeff Athey
5
I am always impressed with their knowledge and desire to educate the customer regarding the best and most economical way to keep their vehicle in operation.
Rusty Latenser
5
A few years back took my car to the dealership to get a headlight replaced. Cost was $200.00+. Same lamp went out again. Mr. Transmission was recommended an employee at a parts store, found the shop, work done at a price of just a little over $20.00! This honest to God fact! Mr. Roman Combs owns an HONEST shop that does quality work at very reasonable rates! You know finding a good mechanic is like trying to find a good doctor! Extremely hard even on a good day! I will not take my car to anyone else! Mr. Combs is Good People! You can trust him!
Mike Brown
5
LIFE SAVER!!! Lauren & Roman we’re so professional, kind, honest, hardworking & they make a great team. Got my car up and back running in no time, worked with me because it’s not always a breeze getting and picking your car back up! But please check them out for any issues you have with your car. YOU WILL NOT REGRET IT!
Jenice Jacksonn
5
Hi Jenice, thank you for leaving us a great review! We're happy to have gotten you car back on the road quickly and safely! We're delighted to hear that you enjoyed working with us! We greatly appreciate you recommending us, and we hope to see you again sometime at Milex Mr. Transmission OKC!
Professional, friendly, reasonable, and they go the extra mile. Repaired an oil leak that left a redneck trail of shame in my driveway. They gave me a ride home and did a follow-up examination after a week to make sure all was right. Bonus points for having a shop cat.
M W
5
Thank you M for taking a moment to offer us a kind word or few. We are excited that you enjoyed your time with us. And we agree, Crazy is quite the addition to our family here. Come visit her anytime
Roman and his team expertly replaced the transmission in my car. They secured a very good used transmission, with a 12-month warranty and it's running great. I've now driven with it for 2 months and there are no problems. I am so happy with the results! Roman and his team are super great and professional to work with!
Warren C
5
Warren, thank you. We really appreciate your kind words and we are glad you had a great experience at our Oklahoma City location. If you have any trouble please let us know and we will make it right. Stop by anytime for a free winter check because you know "Winter is coming" :)
Roman is an extraordinary shop owner and human being. My vehicle was at a different shop and I was being told that due to circumstances, that I would not have my vehicle for 2 months and they kept shifting the blame. I called Roman as a consultant, and he was very thorough, asking clarifying questions and helping me to understand what was happening with my vehicle and the next steps to take to get the issues resolved, and my vehicle back to me in a timely manner. Though my repairs were not done at this location, Roman took time out of his day to help me and ensure that I was not taken advantage of. Roman has shown honesty and integrity and helped educate me on my vehicle. Wonderful owner and person!
Samantha
5
Samantha, Thank you immensely for taking the time to share your experience. We are glad you felt comfortable consulting our team and we really hope your situation resolved well for you.
FANTASTIC, honest, and fast service every time. I'll never take my car anywhere else.
Shira M
5
Everyone knows finding a.mechanic that will give you honest diagnosis and quality repair is easier said than done. The people at Oklahoma City Auto Repair Milex are exactly what one will find here. Quality work, fair prices, and looking to get you back on the road with integrity. No one want their car to breakdown, bit if it does this is the first place you should go. I will go back again without a doubt.
Nathan B
5
Roman and the crew at Milex always takes great care of my vehicles! Thank you!
Angie G
5
Gears

Our Oklahoma City Auto Repair Services

From routine maintenance to major repairs, we handle it all. Here's how we keep OKC drivers moving

Transmission Specialists

Engine & Performance

Safety & Braking

Maintenance & Prevention

Drivetrain & Undercarriage

Don't see what you need? Call us - if it's automotive, we probably do it.

View All Services

Peace of Mind on Every Mile

Your car troubles don't stop at the city limits, and neither does our commitment to you. Every transmission repair, brake service, and auto maintenance we complete comes with nationwide warranty protection honored at participating locations across the continental United States.

Nationwide Warranty Coverage

We stand behind every auto repair job we complete because we take pride in doing things right the first time. Our nationwide warranty means you're protected whether you're driving to work downtown or visiting family in another state. Ask us about specific warranty coverage when you bring your vehicle in for service.

Nationwide Warranty

Learn More About Warranty

Mr. Transmission Milex – Complete Auto Care takes pride and care in every job we do, and we feel confident that you will be completely satisfied with the work we do. The following transmission warranty categories cover all transmission repair work performed at each independently owned and operated franchise center. Our franchise locations and affiliated centers throughout the continental United States will honor the warranty you have been provided with under the terms and conditions outlined on the back of your repair order. Should there be a warranty claim, said claims or damages will not exceed the total amount of repairs listed on your repair order.

12-month/12,000-mile Warranty

This warranty covers repairs and/or replacement of the transmission, parts, or repairs listed on the front of the repair order against material defects and workmanship for 1 year from the date of delivery or 12,000 miles, whichever occurs first.

6-month Warranty/Unlimited Mileage

This warranty covers repairs and/or replacement of the transmission, parts, or repairs listed on the front of the repair order against material defects and workmanship for 6 months from the date of delivery.

90-day Warranty

This warranty may cover a resealed/recondition transmission, standard-clutch assembly, and torque converter (if applicable) against failure of materials and workmanship for 90 days from the date of delivery.

Additional Warranty Programs

Some of our franchise locations offer a third party extended Warranty (not available in all states). This warranty complies with the provisions of our general warranty and third party warranty contract. This program is not offered at all Mr. Transmission Milex locations. Ask one of our professionals for additional information about extended warranty programs available. Warranty programs may vary. Contact Mr. Transmission Milex for more information.

Ready to Get Back on the Road?

Whether your transmission is slipping, your brakes are squealing, or you just need an oil change, Milex Complete Auto Care - Mr. Transmission is here to help. We're committed to honest auto diagnostics, fair pricing, and treating every customer like family—because that's what good neighbors do in Oklahoma City.
Ready for auto care you can actually trust? Call us today and let's get your vehicle running like it should.

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Mr. Transmission - Milex Complete Auto Care - Oklahoma City is committed to ensuring effective communication and digital accessibility to all users. We are continually improving the user experience for everyone, and apply the relevant accessibility standards to achieve these goals. We welcome your feedback. Please call Mr. Transmission - Milex Complete Auto Care - Oklahoma City (405) 942-5523 if you have any issues in accessing any area of our website.