Truck Oil & Fluid Services in Seguin, TX

Heavy-Duty Oil and Fluid Services in Seguin, TX

Don’t wait for a breakdown to change your oil. Routine heavy-duty oil and fluid services are essential for protecting your engine, transmission, and critical systems. At H&H Diesel Service, we make it easy to stay on schedule with full-service fluid maintenance you can trust.

Our oil and fluid services include:

• Full engine oil change (synthetic or conventional)
• Oil filter replacement
• Transmission fluid and gear oil change
• Coolant flush and pressure check
• Differential and axle fluid replacement
• Power steering and brake fluid checks
• Fuel filter and water separator replacement
• DEF top-offs and inspection

Skipping fluid changes increases wear, reduces performance, and risks total system failure. Let our certified techs handle it right—the first time.

Experience the H&H Difference

Certified, Detail-Oriented Techs: Our diesel mechanics follow exact OEM intervals, specs, and torque values to protect your systems and avoid costly damage.

Fast Turnaround, No Guesswork: With 6 bays and 8 full-time technicians, we get your service done quickly and correctly—so you can stay on the road.

Mobile Repairs: Can’t make it to the shop? We offer dependable roadside assistance and scheduled mobile repairs to a 25-mile radius of Seguin, TX.

Clear Communication, Always: We’ll show you exactly what fluids were changed, what condition they were in, and what to watch for—no upsells, no pressure.

Backed by Warranty: Every service is backed by a 30-day workmanship guarantee, and we stand by all OEM parts and fluid specifications.

Contact Us About Oil Service Now: Call 210-332-5821!

Need an oil or fluid change that’s fast, affordable, and done by pros? Call H&H Diesel Service at 210-332-5821 to schedule your commercial truck oil change today—because routine maintenance should never slow you down.

FAQs

What Areas Do You Serve For Heavy-Duty Oil and Fluid Services?

We’re located at 7310 I-H 10 West, Seguin, TX 78155, near the I-10 intersection. We also proudly serve San Antonio, TX; Lockhart, TX; Luling, TX; New Braunfels, TX; San Marcos, TX; Cibolo, TX; Schertz, TX; Marion, TX; McQueeney, TX; Geronimo, TX; New Berlin, TX; Santa Clara, TX; and Lake Dunlap, TX.

How Often Should I Change My Truck’s Oil?

Most heavy-duty diesel engines require oil changes every 15,000 to 25,000 miles, depending on the engine and driving conditions. Always follow OEM recommendations and check fluid condition regularly.

What Happens If I Skip Oil or Fluid Changes?

Skipping oil or fluid service can lead to system overheating, part failure, metal wear, and full engine or transmission breakdown. Routine service is one of the most affordable ways to protect your equipment.

How Can I Get Heavy-Duty Oil and Fluid Services?

Just call 210-332-5821 to schedule your oil or fluid service with H&H Diesel Service. Whether you're local or passing through Seguin, we’ll handle your maintenance fast and professionally.