Commercial Fleet Services · Garden City, Idaho
Fleet Maintenance & DOT Inspections — Boise & the Treasure Valley
Keep your fleet moving. Preventative maintenance programs, DOT inspections, and priority scheduling for commercial fleets across the Treasure Valley since 2013.
Trusted by Treasure Valley fleets
What we offer
Full-service fleet maintenance — shop and mobile.
Preventative Maintenance Programs
Scheduled PM programs built around your fleet's make, model, and mileage intervals. Oil changes, filters, inspections, and fluid services on your schedule.
DOT Inspections
Annual DOT inspections for commercial vehicles. We know what inspectors look for and we'll tell you straight what needs attention before you get to the scale.
Mobile Fleet Service
We come to your yard. Scheduled on-site maintenance means your trucks don't leave the yard for routine service — and your drivers stay on the road.
Factory Diagnostic Software
Factory Detroit, Cummins, and CAT diagnostic tools on every visit. Accurate diagnosis means fewer comebacks and lower total cost of ownership for your fleet.
Why Fleet Managers Choose Interstate Diesel
Every hour a commercial truck sits idle costs money. Fleet managers need a shop that understands that — one that prioritizes their work, communicates clearly, and fixes it right the first time.
What a Fleet Maintenance Program Includes
- Scheduled preventative maintenance — oil and filter changes, fluid top-offs, belt and hose inspection, coolant service, and lubrication on a calendar that works for your operation.
- DOT inspection preparation and completion — we inspect your trucks the way a DOT officer would and tell you what needs attention before it becomes a violation.
- Yard checks — we come to your location and walk your fleet, identifying issues before they become roadside breakdowns.
- Priority scheduling — fleet accounts get priority over walk-in work. When your truck needs to get in, it gets in.
- Mobile service — routine maintenance done at your yard means zero tow bills and zero driver downtime waiting in a shop lobby.
- Consistent documentation — service records for every vehicle in your fleet, every time. Your maintenance history is organized and available.
- Direct communication — you talk to Tony or Gary, not a service writer. Straight answers on what needs doing and what can wait.
Fleet Repair Capabilities
- Engine repair and overhaul — Cummins, Detroit, CAT, Powerstroke, and Duramax platforms. In-frame and out-of-frame rebuilds.
- Transmission service — Allison automatic transmission service and repair, manual transmission diagnosis.
- Brake systems — air brake inspection and repair, drum and disc brake service, brake adjustment.
- Electrical systems — starting, charging, lighting, sensor diagnosis and repair across all commercial platforms.
- Aftertreatment and emissions — DEF system service, DPF cleaning, NOx sensor replacement, SCR catalyst service.
- Suspension and steering — leaf spring, air ride, and steering component inspection and repair.
- Fuel systems — injection system service, fuel tank inspection, fuel line and filter replacement.
- Cooling systems — radiator, water pump, thermostat, coolant service for Class 6, 7, and 8 trucks.
The difference
What sets us apart from the dealer and the chain shop.
Factory Software
Factory Detroit, Cummins, and CAT diagnostic software on every visit — the same tools the dealer uses, without the dealer wait times or overhead.
No Service Writers
You talk directly to the owner and technicians. No telephone game, no upselling from someone who doesn't know your trucks.
Mobile Capable
We come to your yard for scheduled maintenance. Your trucks stay in service until they need to be in the shop — not before.
Since 2013
Over a decade serving Treasure Valley commercial fleets. We know the equipment, we know the territory, and we're not going anywhere.
Fleet Services We Provide
Let's talk about your fleet.
Call Tony directly at (208) 809-0305 to discuss a maintenance program for your operation. We'll ask the right questions, give you straight answers, and put together a program that keeps your trucks moving.
Call 208-809-0305