Routine oil and fluid services are the easiest way to extend the life of your diesel truck. From oil changes and coolant flushes to transmission and brake fluid service, we keep your systems clean and efficient.

Oil and Fluid Services in Moses Lake, WA
Fluids are the lifeblood of your diesel truck—and without proper maintenance, breakdowns are inevitable. At 509 Roadside, we provide complete oil and fluid services for trucks, RVs, trailers, buses, and heavy equipment. Whether you’re due for an oil change or need a full system flush, we’ve got you covered.
Common oil and fluid services include:
- Semi truck oil changes
- Transmission and gear oil changes
- Coolant flush and refill
- Power steering and brake fluid service
- Fluid leak inspections and top-offs
What Makes Us Different
We handle fluid service for a wide range of commercial vehicles, using high-quality products that meet OEM specs. Every job is completed with care to prevent wear and avoid costly failures.
- In-shop service for trucks, RVs, trailers, buses, and fleets
- Roadside assistance available during business hours
- Honest timelines and transparent estimates
Need us on the road? Our mobile service team can assist during weekdays for breakdowns and scheduled on-site repairs. If you’re stuck and need help, 509 Roadside has you covered with 24/7 roadside assistance.
FAQs
How Can I Get Oil and Fluid Services?
Call 509-855-4932 to book your service today. Whether you need a quick oil change or a full fluid inspection, we’ll take care of it with speed and precision.
What Fluids Should I Service Regularly?
Engine oil, coolant, transmission fluid, brake fluid, and power steering fluid should all be checked regularly. Replacing them on schedule protects your truck from wear and overheating.
How Often Should I Change My Truck’s Oil?
Oil change intervals vary by engine type and usage, but most trucks benefit from a change every 10,000 to 25,000 miles. Frequent short hauls or extreme loads may shorten that range.
What Areas Do You Serve for Oil & Fluid?
We’re located at 11969 Debonair Street Northeast, Moses Lake, WA. We also proudly serve Spokane, WA; Kennewick, WA; Pasco, WA; Richland, WA; Yakima, WA; Wenatchee, WA; and Ellensburg, WA.
Schedule Your Oil Service Now: Call 509-855-4932!
Don’t skip routine maintenance—call 509-855-4932 now to schedule your oil or fluid service and keep your truck running smoothly.
What They're
Saying About Us
See why our customers consider 509 Roadside their go-to repair shop in Moses Lake, WA and the surrounding areas!
509 Roadside is amazing. I was driving my truck and was in the area with an airbag broken on my trailer. I called 7 different shops within 100 miles of Moses lake around 1pm on a Thursday 3/13/25 and 509 was the only one to answer. Not only did they answer but they took the time to find the correct airbag and get me safely back on the road at a very reasonable price! It was a great experience and I will definitely be using their services again if I’m ever in need.
I started using 509 Roadside in 2023 and I can’t say enough good things about Joe and his team. They provide prompt and professional repair services for my equipment at very reasonable rates. Since my office is based outside of the region where 509 Roadside is located, they are a strategic resource for my equipment service needs.
Came in for an issue, fixed extremely quick. The most honest mechanics ive seen in a long time. Will definitely be coming back for any future issues!
Joseph helped me out when my car couldn’t shift gears coming from Spokane, going back to Western WA. It was 99 degrees out and he came from his house to help me. He was calm, knowledgeable, communicated well, and honest. He even called me when I got back home to make sure I made it and gave me some car tips. There aren’t too many people out there like him. I believe in karma, and Joseph deserves all the best karma his way.
Joseph and the 509 Roadside crew have been an invaluable part of keeping our fleet of delivery trucks running reliably here at Culligan, and it has been great having such a fantastic, local mechanic. He is consistent, thorough and always goes the extra mile to ensure our vehicles are in excellent condition. His attention to detail and commitment to quality work are evident in every job he takes on. Knowing we can count on him for fast, dependable service makes all the difference in keeping our operations on schedule. Very highly recommended for all your fleet needs!
My car broke down and Joe found me stranded. He called a tow truck immediately and waited with me, I told him I thought my alternator burned out and he confirmed that was the case as soon as he walked up. He had the car fixed first thing in the morning and his rate was very reasonable. Joseph is a great person and an amazing mechanic. I highly recommend his services.
509 Roadside put in a left foot pedal, brand new brakes, and rotors and rear drums on my car. Also checked all fluids and cleaned engine bay. They were fast, friendly, and went way above and beyond for me. I would give these guys 20 stars if I could!
They did excellent work on getting my 1995 Tacoma running with multiple vacuum and other issues. Good diagnosis and repair on old projects is hard to find now days. I would recommend these folks to anyone.
Contact 509 Roadside
Need roadside assistance, have questions, or want to schedule your truck or trailer in for a service or repair? Get in touch!