Low fluid levels, dirty oil, or warning lights are signs that your systems are under stress. Heavy-duty oil and fluid service restores proper lubrication, cooling, and protection where it matters most. Book your service today and keep your operations rolling strong mile after mile.
Truck Fluid Change Service in Mount Horeb, WI
Your truck depends on a range of fluids to stay operational. Engine oil, transmission fluid, coolant, power steering fluid, and more are all essential to keeping your trucks on the road. Skipping fluid changes or using the wrong spec can lead to overheating, loss of power, and premature part failure.
At River Valley Diesel Services & Construction, we perform comprehensive fluid services on all makes and models of heavy-duty trucks and commercial vehicles.
Here’s what we can service or replace:
- Full diesel oil change service and filter replacement
- Coolant flushes and top-offs
- Transmission and differential fluid changes
- Hydraulic oil replacement for PTOs and lifts
- Fluid leak repair and diagnostics
- DEF system top-off and maintenance
- Power steering and brake fluid services
Whether you need a scheduled service or emergency fluid top-off, we’ll use manufacturer-recommended fluids and verify that each system is clean, sealed, and fully operational.
Experience the River Valley Difference!
Service Multiple Trucks at Once: We can perform oil and fluid services on up to six trucks at once, so even large fleets stay on schedule.
Customer Service Focus: You get fast, honest updates and clear explanations of every service your truck needs.
Transparent Pricing: Every quote is accurate and up front—no surprise charges for disposal, shop fees, or extra quarts.
Easily Accessible: We’re just off I-94 and I-151 in Mount Horeb, WI, making it easy to drop in for service and get back to work.
FAQs
How can I get heavy-duty oil and fluid service?
Call 608-574-5785 today to book your heavy-duty oil and fluid service. We’ll check, change, and top off every fluid your truck needs to run reliably. Don't wait until it's too late; book your service now!
What fluids need to be changed regularly?
Heavy-duty diesel vehicles require regular changes of engine oil, coolant, transmission fluid, differential fluid, power steering fluid, and brake fluid. Adhering to maintenance intervals helps prevent component wear, overheating, and system failures, ensuring reliable and efficient vehicle operation.
How often should you change oil in a diesel truck?
Oil in a heavy-duty diesel truck should typically be changed every 10,000 to 25,000 miles, depending on engine type, load, driving conditions, and oil quality. Always follow the manufacturer’s maintenance schedule to ensure optimal engine performance and longevity.
What areas do you serve for heavy-duty oil and fluid service?
We are based at 3200 Hwy 78, Mount Horeb, WI, near I-94 and I-151.
As well as Mount Horeb, WI, we also proudly service the following areas: Madison, WI; Janesville, WI; Wisconsin Dells, WI; Beaver Dam, WI; Fitchburg, WI; Middleton, WI; Sun Prairie, WI; Verona, WI; Stoughton, WI; Baraboo, WI; Portage, WI; Lake Delton, WI; Reedsburg, WI; Dodgeville, WI; Monroe, WI; Columbus, WI; Fort Atkinson, WI; Waunakee, WI; and Evansville, WI.
Contact Us About Diesel Oil Change Service Now: Call 608-574-5785!
Need fluids checked, changed, or flushed? Call 608-574-5785 to book your diesel oil change service or full fluid checkup. We’ll help extend the life of your engine and systems: fast and hassle-free.
What They're Saying About Us
See why our customers consider River Valley Diesel Services & Construction their go-to repair shop in Mount Horeb, WI and the surrounding areas!
I was in a jam and they came out and got me fixed up quick I would definitely recommend them if you’re in a jam
Contact Us
Need roadside assistance, have questions, or want to schedule your truck or trailer in for a service or repair? Get in touch, we're open Monday through Friday from 7:00am to 5:00pm.