Great service, Randy found things on my semi truck that two other mechanic shops missed. Takes his time and does things right, not rushing through like others do. Michelle in the office is very friendy and professional. Definitely will be returning in the future.

Thanks for the help with my air compressor problem. Excellent experience. Nice meeting you folks. Godbless.👍🚛🚓

We have used Tri-County Diesel for years for all our service needs for 6 trucks. Truman, Michelle, Randyand everyone at Tri-County is first class all the way! I noticed a review calling them a take your money and run shop that is the farthest from the truth. This shop is by far the most honest, professional and friendly place you will ever find to repair your truck.

Would definitely recommend Tri-county diesel for repairs that are needed for the vehicles. Friendly group of people who know what theyre doing.

I am very pleased with service I received from Tri-County Diesel Services. They replaced a carrier bearing on my 2016 Freightliner Cascadia, and got me back out on road with my load the next day. Charges for work were very reasonable. Michelle in the office was super! Very friendly and professional. I even met the owner, Truman, while waiting in the break room for my truck the morning after I left truck off for repair. Truman and I had a nice chat, I was impressed with him and his shop. I will definitely take my truck to Tri-County Diesel in the future if I am in San Antonio area and need service or repairs for my Cascadia.

Came in for an oil leak . Worked on everything BUT my problem . Left there $ 324 lighter in the wallet, problem still existed . Yes they did fix an air leak I had,, BUT, NEVER diagnosed my original complaint! Typical take the money and run shop . Hope you sleep at night, never AGAIN !!

The best for your commercial truck periodic & heavy maintenance.

Get done right the first time

Had some front end work done to my truck and they knock it out of the park. Its been about a month since they did the work. I didnt wanna write a review until I drove it for a while to see how it felt. This is the second time Tri-County has worked on my truck. I would definitely recommend them. They actually go above and beyond to help you out! Thanks guys!!

If your o/o I recommend you this place they get me in and out fast ......Excellent work pricing and customer service

Very professional, and thorough in his work. Delivered what he said he would, on time with great craftsmanship.

Visited to discuss a used school bus I was purchasing and getting it serviced. The owner personally spoke with me. I will be returning as soon as I can with the bus.

Great people to have work on your rigs.

Top notch . I have going to Tri County 15 years . Truman cares about truck driver and his or her equipment.

Good and honest people, great service

These guys just get it done and done right.

Professional service with personal care

The best mechanic in San Antonio

VeryGood people