Keep your trucks working. Schedule maintenance where they park.
MTG sends mobile diesel technicians to your fleet yard, terminal, or jobsite for commercial trucks, trailers, and equipment across Colorado, Wyoming, and Texas. Visits are planned around parked units and your operating schedule, and every visit is backed by four fixed MTG repair shops when work needs a bay.
Requests are reviewed by dispatch, who confirms scope, site access, and a service window. Submitting a request does not confirm an appointment.
Dispatch (303) 476-3622 · CO · WY · TX · 4 shops
MTG MOBILE SERVICE TRUCK
A 2018 Ford F-450 was serviced as a mobile preventive maintenance visit by the MTG Colorado mobile team: engine oil and oil filter, fluid checks and top-off, fuel filter and water separator, then leaks and operation checked. The inspection found a drain-plug leak and a torn wiper — both replaced and the truck retested before it went back in service.
Full record and checklist“They are reliable, fast, and great to work with.”
Customer feedback from our Brush, CO Google listing.
Choose a single visit, a recurring maintenance schedule, or dedicated technician support. We review your units, site access, service needs, and preferred window to build a practical plan for your operation.
A single scheduled visit to catch up several units at once — useful after a backlog, a missed service cycle, or a new group of trucks and trailers entering your fleet.
A repeating visit cadence set from manufacturer guidance along with your mileage or engine hours, duty cycle, and service history. Visits are planned around parked equipment and your routes.
For fleets that need work completed outside operating hours, or a technician assigned to their yard. Availability is subject to your location and an agreed scope and service window.
Every fleet visit follows the same sequence, so scope, access, and timing are settled before a technician arrives.
You send the units needing service and the site address. Unit numbers, types, mileage or engine hours, and any service history help set the right starting point.
Dispatch reviews the work, the parts to carry, yard access, parking, and the order of units, then confirms scope and pricing with you.
Technicians arrive in the agreed window and work through the units in a sequence that keeps the rest of the yard moving.
What was found on each unit is documented, and anything outside the agreed scope is discussed with your fleet contact before it is authorized.
The next interval is set from what the visit recorded and the manufacturer guidance for those units, so the schedule reflects the equipment rather than a fixed clock.
Three tiered preventive maintenance packages delivered to your yard, with the annual DOT inspection and inspection-readiness work scheduled alongside them. Package mix and interval per unit are agreed with your fleet contact, and the findings are documented for your records.
Interval set by manufacturer guidance and duty cycle
The essential lube, oil, and filter service with a walkaround inspection to catch small issues before they become roadside failures.
Deeper interval, planned with your fleet schedule
A deeper scheduled service that adds brake, suspension, steering, and air-system checks on top of every PM-A item.
Extended interval for high-mileage or severe-duty units
The most thorough of the three tiers — wheel-end work, aftertreatment diagnostics, and a comprehensive documented inspection.
MTG performs the periodic (annual) DOT inspection at your yard or in a shop bay and keeps maintenance-side inspection readiness in the same visit — brakes, air systems, lighting, tires and wheel ends, and securement. Completed work is documented per unit for your carrier records.
CVSA inspections are enforcement inspections carried out by certified inspectors at roadside or inspection stations, and CVSA decals are issued through that program. MTG does not perform CVSA inspections or issue CVSA decals.
The periodic (annual) DOT inspection of the power unit and trailer, performed by MTG technicians at your yard or in a shop bay, with the inspection documented for your carrier records.
A maintenance-side review of the items that most often surface in roadside inspections — brakes and adjustment, air leaks, lighting, tires and wheel ends, couplings, and securement — with defects identified and repaired before the unit goes out.
When an inspection or PM visit turns up a defect, the repair is scoped and authorized with your fleet contact, then completed onsite where the work allows or routed to a shop bay.
Completed maintenance and inspections are documented per unit so your fleet contact has records of what was done, when, and at what mileage or engine hours.
Onsite work is performed from MTG’s own mobile service trucks, with four fixed shops supporting the visits that need a bay.
A 2018 Ford F-450 was serviced as a mobile repair by the MTG Colorado mobile team. The visit was a B basic wet service: engine oil and oil filter change, fluid checks and top-off, air filter replaced, fuel filter and water separator replaced, the system primed, then leaks and operation checked.
The inspection during the visit found a drain-plug leak and a torn wiper. The affected parts were replaced and the truck was retested before it went back in service.
Checks, parts, and results shown are from this completed service order. Scope is set per unit and service interval, so another visit can cover different items.
| Checklist item | Result |
|---|---|
| Engine oil condition | Satisfactory |
| Engine operation | Satisfactory |
| Engine leaks | Satisfactory |
| Fluids top off | Completed |
| Mileage | Recorded |
| Oil and filter procedure | Completed |
Summary transcribed from a completed MTG service order and PM checklist. Customer, unit, VIN, plate, pricing and signatures omitted.
Service: mobile trailer repair · June 2026 · Harlingen team
A commercial trailer was resealed on site at a customer facility in Los Indios, TX, served by the Harlingen team.
Holes and leaks were reported at the trailer's upper corners. The technician found a damaged front corner seal and damaged roof edge, cleaned the affected surfaces, and applied new sealer to both front corners. The floor was inspected with no visible damage found.
At completion, MTG recommended replacing the cracked left-front corner cap when the trailer returned to the terminal. The recorded work covered corner resealing; cap replacement was not included in that visit.
Anonymized summary from an MTG service order and dispatch completion notes.
MTG mobile diesel service covers commercial trucks, semi tractors, trailers, box trucks, and medium-duty fleets onsite — the same PM-A, PM-B, and PM-C work delivered at your yard, terminal, or jobsite.
Semi tractors and dry van, reefer, and flatbed trailers; box trucks and medium-duty fleets running regional and last-mile routes. PM work follows the tiered packages above and is set to each fleet’s schedule.
Service intervals depend on manufacturer guidance, the equipment, its duty cycle, and service history — MTG sets the cadence to your fleet, not a fixed clock.
Altitude, mountain grades, winter, and desert heat each wear a truck differently. MTG onsite PM is scheduled to the routes your fleet actually runs — so the checks that matter most in each region get done first.
I-70 and I-76 into the Rockies put brakes, cooling, and DEF systems under sustained load. Onsite PM catches brake adjustment, cooling, and aftertreatment wear before a mountain-grade failure.
I-80 across Wyoming brings fuel gelling, air-system freeze, and battery drain. PM-A and PM-B check air dryers, fuel/water separators, batteries, and charging before cold shuts a truck down.
Harlingen and McKinney heat stresses cooling, A/C, tires, and batteries. Onsite PM in Texas targets cooling system pressure, tread depth, and charging systems for sustained high-temp running.
Onsite PM and DOT programs are built around how each fleet works — from long-haul Class 8 to last-mile box trucks, run across Colorado, Wyoming, and Texas.
Semi tractors and trailers running I-70, I-76, I-80, and I-25 get PM-A/B/C intervals set to their mileage and duty cycle, plus the annual DOT.
Box trucks and medium-duty fleets on tight urban schedules get yard-based PM and DOT to protect delivery windows.
Vocational trucks, mixers, and dump trucks run dirty and heavy — PM targets suspension, brakes, and hydraulics.
Field service trucks in remote areas get scheduled PM and DOT to stay compliant and avoid remote downtime.
Reefer and dry-van fleets get PM plus reefer checks and DOT to keep cold-chain and store deliveries on time.
Landscaping and building supply fleets get PM and DOT at the yard so crews and materials keep moving.
Coverage is confirmed per site with dispatch — job type, site access, and travel determine whether a visit is scheduled.
Onsite fleet service across the Denver metro and Front Range, dispatched out of the Colorado shops.
Northeastern Colorado fleets along I-76, with the Brush shop backing onsite visits.
Southwest Wyoming fleets along I-80, with the Green River shop backing onsite visits.
Rio Grande Valley fleets and cross-border lanes, backed by the Harlingen shop at 201A Bob Youker St.
North Texas fleets across Collin County and the DFW metroplex, backed by the McKinney shop at 3462 County Road 341, Suite 200.
MTG works with Holman Fleet accounts on scheduled onsite PM, periodic annual DOT inspections, and repair authorizations for Holman-managed trucks and trailers across Colorado, Wyoming, and Texas — with maintenance and inspection work documented per unit for your records.
MTG Shops coordinates onsite PM, DOT, and repair authorizations with the major fleet maintenance providers — tap a vendor to see the locations and services available to its customers.
Dispatch answers 24/7. Have the details below ready and call, or send a service request — scheduled visits are confirmed for scope, location, and availability.
Call dispatch to talk through your unit list, or use the online request form for a written record.
MTG Shops runs 24/7 mobile and shop repair across 24 service areas in three states. Find onsite pm & dot inspections in your area:
Send your unit list, service site, and preferred window. Dispatch reviews the request, then confirms scope, access, and availability.
Open the fleet maintenance form to send your onsite PM or DOT inspection request to dispatch for review.
Open Fleet Quote RequestOr call (303) 476-3622
