
Diesel Truck Fleet Services
Central Canada’s premier specialty diesel truck shop


At Walls Rod & Custom, we understand that your diesel fleet is the backbone of your business. Our Fleet Maintenance Facility Program is fully customizable to fit the size and needs of your fleet — whether you operate 5 vehicles or 500. Our services help you reduce downtime, lower operating costs, and extend the life of your trucks, keeping your operations running smoother and more efficiently.
Why Choose Our Fleet Maintenance Services?
- Reduce fleet downtime and keep your trucks on the road longer
- Lower operating expenses by minimizing costly repairs
- Improve fuel economy — save fuel during idling and driving
- Extend vehicle life with proper maintenance and tuning
- Limit vehicle speed and engine RPM to prevent abuse
- Prevent premature wear and mechanical failures
- Reduce your business’s liability risks
- Cost-effective alternative to expensive hybrid systems
Fleet Maintenance Packages
Choose the service package that fits your fleet:
- Basic Package:
- Oil changes
- Air and fuel filter replacements
- Scheduled inspections
- Proactive Package:
- All Basic services plus:
- Full diagnostics
- DEF (Diesel Exhaust Fluid) management
- Regular tune-ups
- Full-Service Package:
- Everything in Basic + Proactive
- Roadside support coordination
- Priority emergency response
Custom plans are also available — contact us to create a package tailored to your fleet’s needs.
Transparent Pricing Structure
We believe in being upfront: Service costs can vary, depending on several factors such as mileage, service severity, driving conditions (highway vs. dusty roads), and type of business use (heavy commercial vs. light commuting).
For a precise estimate tailored to your fleet, contact us directly — we’ll be happy to help.
Turnaround Time
We understand that time is money. That’s why:
- Most fleet maintenance jobs are completed within the day
- Fleet accounts receive priority scheduling, handled by dedicated fleet service staff
Service Options
- Mobile Services: We do not currently offer mobile services, but we respond quickly to emergency phone calls and emails.
- Emergency Support: Need urgent help?
We offer emergency email service and tech support, typically responding within an hour during business hours.
Certifications & Experience You Can Trust
- Over 27 years serving fleets and diesel vehicles in Winnipeg and across Manitoba
- Multiple certified technicians specializing in all major diesel brands and models
- Trusted by businesses across the region for reliable, consistent service
Real-World Performance Gains
Our custom tuning and calibration work can deliver significant savings:
- Up to 3–5 MPG improvement in fuel economy
- 30% extended injector life thanks to reduced exhaust gas temperatures (EGTs)
- Over 25% improvement in transmission holding capacity and longevity with transmission tuning
Fleet Maintenance Example
A real-world example:
With our Economy Efficiency Tune, a 2006 Ford F250 6.0L diesel truck achieved a 19.26% gain in fuel economy.
Our solutions also offer essential fixes for problematic diesel engines, including:
- EGR corrections
- Head gasket repairs
- Oil cooler upgrades
The result? Lower maintenance costs and less costly downtime.
To learn more about Walls Rod & Custom‘s diesel truck Fleet Maintenance Services contact us at 204.878.4321

What are service intervals for diesel?
Diesel service intervals in Canada depend on your vehicle and how you drive. Here’s a general guide:
Oil & Filter: Every 8,000–15,000 km, more often for heavy use.
Fuel Filter: Every 20,000–40,000 km to keep fuel flowing smoothly.
Air Filter: Every 30,000–50,000 km, sooner if driving in dusty areas.
DEF Refill: Check every 5,000 km and top up as needed.
Coolant & Brakes: Inspect every 20,000–50,000 km.
Transmission Fluid: Change every 50,000–100,000 km, depending on usage.
Glow Plugs: Check around 100,000 km, or if starting gets rough.
Always check your owner’s manual or talk to a mechanic for exact timing—especially if you tow, drive in extreme weather, or push your truck hard.
What is the recommended maintenance schedule for Cummins?
For a Cummins diesel in Canada, stick to these key maintenance intervals:
Oil & Filter: Every 7,500 miles or 6 months
Fuel Filter: Every 15,000 miles
Air Filter: Check with every oil change, replace as needed
Coolant & Transmission Fluid: Every 30,000 miles
Differential Fluid: Every 30,000 miles
These are general guidelines—check your manual or a Cummins service provider for specifics based on your engine and usage.
Diesel Truck Fleet Service Winnipeg Reviews
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Ready to Reduce Your Fleet’s Downtime and Costs?
👉 Call us today at 204.878.4321
👉 Book Service Now or send us an email for quick support or estimates!