When was your truck’s last fluid service? At GTC Services, we offer heavy-duty oil and fluid services to keep your engine, transmission, and hydraulics reliable. Whether you’re an owner-operator or fleet manager in San Antonio, our team helps your trucks run smoothly and efficiently.
Oil & Fluid Changes In Converse, TX, Located Just Outside San Antonio
Your truck’s fluids work harder than any other part of your vehicle. Over time, high heat, friction, and constant load cycles break down the oil and lubricants that protect your engine. At GTC Services, we perform complete oil and fluid change services for heavy-duty trucks, ensuring your components are always properly cooled and lubricated for maximum longevity.
Our oil service includes draining old oil, replacing the filter, and refilling your system with premium-quality synthetic or conventional oil based on your manufacturer’s recommendations. We also inspect your oil pan, drain plug, and surrounding components for leaks or early signs of wear.
In addition to oil, we service transmission fluid, coolant, and differential oil to help prevent corrosion, overheating, and gear slippage. Whether your rig is idling through San Antonio traffic or hauling long distances, you can count on GTC Services for thorough, efficient maintenance that keeps your vehicles running at their best.
What Makes Us Different
At GTC Services, we know downtime costs you money. That’s why we take pride in providing same-day turnaround for most jobs, allowing drivers and fleets to get back on the road faster. Our team is known for precise, efficient work and a customer-first approach that’s earned the trust of operators across Converse and the greater San Antonio area.
We also offer flexible service options through our partnerships. With Blackstone, our customers have access to truck parking, fleet storage, and even bay rentals. Our affiliation with IronLite Trailers extends the value we offer, while our roots in Guerra Truck Center ensure every job reflects decades of hands-on experience in trucking and repair.
Simply put, when you choose GTC Services, you’re working with a team that understands the importance of reliability, fast service, and results that last.
Contact Us About Commercial Oil Change Services Now: Call 210-648-0316!
If your heavy-duty truck is due for a service, don’t wait until small issues turn into expensive repairs. Call 210-648-0316 today to schedule your commercial truck oil change with GTC Services. We’ll keep your rig road-ready and performing at its best—serving drivers throughout Converse and the San Antonio area.
FAQs
What Areas Do You Serve?
We are conveniently located at 12930 IH 10 E in Converse, just outside of San Antonio, TX. Our team serves drivers and fleets across Schertz, Universal City, Selma, La Vernia, New Braunfels, and Austin, TX—covering up to a 60-mile radius. No matter where you operate within the greater San Antonio area, GTC Services is your reliable local resource for heavy-duty truck maintenance.
How Often Should I Change My Truck’s Oil?
For most heavy-duty diesel engines, oil changes are recommended every 15,000 to 25,000 miles, depending on the oil type and your truck’s workload. Trucks operating in high-heat conditions or frequent stop-and-go driving in San Antonio may require more frequent intervals. Regular oil testing and inspections can help determine the optimal schedule for your specific vehicle and route.
What Happens If I Don’t Change My Truck’s Fluids Regularly?
Failing to replace old or degraded fluids can cause severe internal damage to your truck’s engine and transmission. Over time, contaminated oil loses its lubricating properties, leading to metal-on-metal contact, friction, and overheating. Without timely maintenance, this can result in decreased performance, reduced fuel efficiency, and even total component failure—costing far more than a routine service.
Keep Your Truck Moving—Call GTC Services Today
Whether you’re a fleet manager overseeing dozens of trucks or an independent operator covering the I-10 corridor, we’re here to help. Contact GTC Services at 210-648-0316 today for reliable, fast, and professional heavy-duty oil and fluid services in Converse and throughout the San Antonio region. We’ll keep your truck running strong—mile after mile.
Repairs Located Just Outside San Antonio In Converse, TX
Whether you’re an independent owner-operator or managing a full fleet, your truck’s performance is your livelihood. Our experienced technicians handle a wide range of repair needs for heavy-duty vehicles, using advanced diagnostic tools and high-quality parts to ensure lasting results. Every repair is performed with the same goal in mind: minimize downtime and maximize reliability for every mile your truck runs across San Antonio and beyond.
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Our Customer's Testimonials
Sheena
We have used this shop before. Will recommend their services to anyone. The customer service from the front to the mechanics is top tier!
Ruth
My truck needed the California inspection and Scott was great. Quick and a really nice guy. I was in and out in a flash.
Darryl
Quoted their work, exceeded quality expectations, met their timeline, then stuck to original price quoted....... PRICELESS!!!!