Oil & Fluid
Running overdue on oil or fluid maintenance? TML Service Group provides professional heavy-duty oil and fluid services to protect your engine, reduce wear, and keep your truck operating efficiently.
Oil and Fluid Services in Houston, TX
TML Service Group provides heavy-duty oil and fluid services in Houston, TX for medium-duty and heavy-duty trucks, fleets, trailers, and buses. As a mobile-only provider, we perform on-site oil changes and fluid maintenance at your location. Our oil and fluid services commonly include:
- Engine oil change and oil filter replacement
- Synthetic and conventional oil service
- Transmission fluid change
- Differential gear oil service
- Coolant inspection and top-off
- Power steering fluid service
- DEF system fluid checks
- Complete fluid level inspections
Why Choose Us?
Proper oil and fluid maintenance is one of the most cost-effective ways to prevent major mechanical repairs. At TML Service Group, we service commercial vehicles daily and understand the demands placed on working trucks in Houston’s industrial environment.
Why truck owners and fleet managers choose us:
- Mobile-only service performed at your truck or fleet yard
- Experience with heavy-duty diesel lubrication systems
- Thorough inspection during every service
- Service for single trucks and full fleets
- Clear communication about fluid condition and recommendations
We operate within a 100-mile radius of Houston, TX, helping you stay on schedule without unnecessary shop visits or downtime.
Businesses & Fleets We Support
Routine fluid service is one of the most effective ways to improve reliability and extend the life of commercial vehicles and heavy equipment. TML Service Group helps fleet managers throughout Houston maintain heavy-duty trucks and equipment with professional oil and fluid services that reduce wear and prevent unexpected failures.
We proudly support:
- Waste and refuse companies
- Concrete producers
- Tanker fleets
- National transportation companies
- Heavy equipment contractors
- Construction companies
- Utility contractors
- Municipal fleets
- Industrial service companies
- Commercial fleet operators
- Equipment rental companies
- Owner-operators
Our technicians perform engine oil changes, coolant replacement, hydraulic fluid service, transmission fluid service, differential service, and other scheduled fluid maintenance for heavy-duty trucks, trailers, vocational vehicles, and heavy equipment.
Schedule Oil and Fluid Service Now: Call 832-722-5434!
If your truck is due for an oil change or fluid service, call 832-722-5434 to schedule heavy-duty oil and fluid services. We’ll service your truck on-site and help keep your equipment operating at peak performance.
FAQs
What Areas Do You Serve?
As a mobile-only business based in Houston, TX, we provide service throughout a 100-mile radius. This includes The Woodlands, TX; Katy, TX; Conroe, TX; Baytown, TX; Pasadena, TX; Sugar Land, TX; Pearland, TX; League City, TX; Galveston, TX; Beaumont, TX; and Bryan-College Station, TX.
How Often Should I Change My Truck’s Oil?
Oil change intervals depend on engine type, operating conditions, and manufacturer guidelines. Many heavy-duty diesel engines require service between 15,000 and 25,000 miles, but severe-duty applications may require more frequent oil changes.
What Happens If I Don’t Change My Oil?
Failing to change engine oil can lead to sludge buildup, reduced lubrication, overheating, accelerated wear, and potential engine failure. Contaminated oil loses its protective properties and increases friction between internal components.
How Can I Get In Touch?
Call 832-722-5434 to schedule heavy-duty oil and fluid services with TML Service Group and keep your truck properly maintained.
Mobile Repair Services
Reliable Mobile Truck & Trailer Repairs
From sudden breakdowns to ongoing performance issues, we handle a wide range of heavy-duty truck repairs. Common problems we resolve include engine no-start conditions, overheating, air brake failures, electrical faults, suspension wear, driveline vibration, and trailer repair needs.
Our mobile technicians perform thorough diagnostics before beginning repairs, ensuring we address the root cause. Whether it’s a single truck or an entire commercial fleet, TML Service Group provides professional mobile truck repair in Houston, TX & the surrounding 100 miles, designed to reduce downtime and protect your bottom line.

Contact & Location
Contact TML Service Group
Providing service to Houston, TX & the surrounding 100 mile radius, TML delivers professional, mobile repair and maintenance services for heavy-duty trucks, trailers, equipment, & commercial fleet vehicles. Reach out to our team today with any questions, to request a quote, and to schedule service.