TRM Auto Diesel Serv. Inc. is considered the best diesel shop in the Houston area and possibly the Gulf Coast. The shop is known for being honest, knowledgeable, and professional, with no overcharging or unnecessary repairs. They do quality work and provide detailed information, with great prices and five-star customer service. The mechanics are top-notch and trusted with vehicles, specializing in diesel but also working on gas vehicles. They are busy but timely, finding problems and providing options. Reviews highlight that vehicles, even with very high mileage, are returned running fantastic and like new. The business is highly recommended for being awesome, reliable, and keeping vehicles in good hands.
The greatest company to take your diesel truck to save me about $10,000 from a crook down the street in Pasadena that was trying to manufacture situation that didn't exist inside of the engine because gasoline was put in the fuel tank. Thank you so much Doug you are a lifesaver
May 2026
Surpasses every other mechanic shop out there with knowledge and trustworthy work that shows in their shop environment!
January 2026
I took my 07 silverado diesel lbz it was having really bad transmission issues. Ended up being the wire harness on the transmission. Very happy with their service. Got my truck back running right the next day.
