Diesel Services at Dennis Road Automotive

At Dennis Road Automotive, we proudly cater to diesel trucks and jeeps from manufacturers such as GM, Chevy, Dodge, Ford, and more. Our specialization extends to the maintenance of diesel engines, with a focus on Duramax, Power Stroke, and Cummins.


Cooling and Lubrication Systems
To prevent costly diesel engine repairs in the future, it's essential to maintain your diesel engine's cooling system effectively. Ensuring efficient cooling and lubrication in high-performance Duramax, Power Stroke, and Cummins diesel engines is the key to extending the lifespan of vital components such as glow plugs, injectors, and turbos.

Glow Plug Replacement
In all weather conditions and road scenarios, your truck or jeep relies on its glow plug to generate the necessary heat and electrical resistance for engine ignition. We offer the ideal glow plug options for Duramax, Power Stroke, and Cummins diesel engines, including DieselRX, NGK, and more!

Injectors and Turbos
Since 1968, Dennis Road Automotive has been recognized as Dallas's premier diesel repair facility. We specialize in rejuvenating worn-out, high-performance injectors and turbos within GM, Chevy, Dodge, and Ford trucks. These components are prone to generating unwanted noise or expelling excessive exhaust. A failing injector can lead to poor fuel economy, glow plug complications, and reduced performance, impacting your truck or jeep both on and off the road.

Jeep and Truck Diesel Exhaust Repair
For any diesel truck or jeep, the exhaust system plays a crucial role in directing exhaust gasses away from the internal combustion engine and dispersing them into the atmosphere. This system can be customized to enhance engine performance, modify muffler sound, or reduce emissions. Regular maintenance is crucial to optimizing your diesel GM, Chevy, Dodge, or Ford truck or Jeep's exhaust system.


Popular Brands We Repair and Service

  • Dodge Diesel
  • Ford Engines
  • DuraMax
  • Mercedes
  • Isuzu
  • Cummins
  • Power Stroke
  • GM Diesel Light Duty
  • Chevy


Why Choose Dennis Road Automotive for Your Diesel Maintenance?

Explore our reviews to understand why we're celebrated for delivering first-class, convenient diesel maintenance at competitive prices. Visit our repair shop and experience the exceptional handiwork of our professional diesel mechanics. Our consistent 5-star ratings show off our status as one of the top recommended diesel repair services in Dallas.

Diesel Maintenance FAQs


What maintenance is required for a diesel engine?

Diesel engines operate at higher temperatures than gasoline engines, requiring frequent oil changes and quality checks to maintain performance. Adding a liquid additive during the colder months and into the spring can also greatly benefit their operation.

How often should diesel injectors be serviced?

The recommended service interval for diesel fuel injectors is around 95,000 miles, but this can vary based on your vehicle's model, make, and your driving habits. Watch for signs such as rough idling or a drop in fuel efficiency as cues to perhaps service the injectors sooner than the mileage guideline suggests.

How long does a diesel engine last?

With proper maintenance, diesel engines can achieve 1 million to 1.5 million miles of service or about 30 years of reliable performance, significantly outpacing the lifespan of gasoline engines. Their durability is enhanced by their strong build and efficient combustion process.

To learn more about our diesel engine repair services, call us at 972-241-1901 or request a quote by clicking below:


Request Quote


Discover More About Diesel Engine Repair At Dennis Road Automotive in Dallas

Miscellaneous Auto Services
Alignment Services
Engine Repair Services


Partners

ACDelco
ASE (Automotive Service Excellence)
Jasper
BBB Accredited Business
Bosch Service
ASA Member (Automotive Service Association)
BG Products
Enterprise
ARI
Texas Official Inspection Station
Ford Power Stroke
Ford Motorcraft
Car Care Aware

What our clients are saying about us

We have established longterm and stable partnerships with various clients thanks to our excellence in solving their automotive needs!

Where do I start ADAM ADAM ADAM remember that name his customer service was outstanding, spectacular, and above and beyond, when I first pulled up he had a Genuine spirit, His presence made me feel very comfortable, I didn’t get this feeling “this guys just here to do a job and get paid” but that he has a heart to care about his clients, He listened, took notes, and understood what I was requesting fully. I told him how I went to another mechanic shop and how I was treated there and how much they were trying to charge me to fix an issue he emphasized with me and understood that not everyone have money to blow especially fixing unnecessary things that doesn’t necessarily pertain to the issue at hand I was being upsold at another mechanic shop and over charged but ADAM rest assured he doesn’t do that there he knows when you treat a customer right they’ll continue to be loyal. I was expecting to have it in the shop for a while and having to Uber to work and back it gets expensive when you’re 30 mins away from work. He was able to fix my Auto Stop Start and Check Engine light for dang near HALF the price of another mechanic shop quoted me and didn’t upsell me and fixed it in 2 DAYS! He was so nice I offered a tip 3 times and he denied it real genuine he also checked in on me to make sure things were straight. I was extremely happy to know it’s fixed and that I’m saving HALF the price I was quoted I found my Guy and Mechanic shop at Dennis Auto Motive HIGHLY RECOMMEND quotes-image
, 01/16/2026
reviewicon
I’ve trusted Dennis Road Automotive for many years, though it’s been a while since my last visit, mainly because they’re not open on weekends. I’ve always appreciated their straightforward service, and I still miss Riley, who brought a great personal touch to the experience. On my most recent visit, I was charged $374 for a new battery for a Lexus ES350. I’m not sure how that compares in today’s economy, but it gave me the same feeling you get when dining out these days, quality isn’t necessarily better, yet the prices seem to jump significantly. The work was completed, and the team was professional, but the cost left me wondering if the value aligns with what it used to be. I still want to support businesses that have served the community for so long, and I hope they continue to provide honest, dependable service at a price that feels fair in the current market.quotes-image
, 12/10/2025
reviewicon