A commercial vehicle preventive maintenance schedule is not a suggestion — for US fleets subject to FHWA and FMCSA oversight, it is a federal requirement and a direct cost-control tool. The American Trucking Associations estimates that for every $1 spent on preventive maintenance, fleets avoid $4 to $6 in unplanned repair costs. Yet most small and mid-size fleets still run PM on memory and whiteboards, missing mileage triggers by thousands of miles and losing track of which unit is due for what service. Whether you operate Class 3 light-duty service vans or Class 8 over-the-road tractors, a documented interval-based PM schedule is the single highest-ROI maintenance investment you can make. Start building your PM schedule in OxMaint — free trial, no credit card.
Commercial Vehicle PM Schedules: Daily, Weekly & Interval-Based
FHWA-aligned preventive maintenance schedules by service interval — oil changes, brake inspections, tire rotation, and more. Automated triggers by mileage or time, managed in OxMaint.
PM Interval Chart by Service Type
Federal Motor Carrier Safety Administration guidelines require fleets to follow a systematic PM program. Below is the standard interval framework — each bar shows the recommended service window relative to one another. OxMaint auto-triggers work orders when any threshold is reached first, whether mileage or time.
Daily, Weekly & Monthly PM Checklist
FHWA's preventive maintenance guidance organizes vehicle checks into frequency tiers. The daily pre-trip inspection is a federal requirement under FMCSA 49 CFR 392.7. OxMaint delivers these checklists to drivers and technicians on mobile — completed digitally with time-stamped records that satisfy DOT documentation requirements. See how OxMaint delivers PM checklists to your drivers and techs.
| Check Item | Daily | Weekly | Monthly | CFR Ref. |
|---|---|---|---|---|
| Lights & Reflectors | — | — | 392.7 | |
| Tire Condition & Pressure | — | 393.75 | ||
| Brake Function Check | — | — | 393.40 | |
| Fluid Levels (Oil, Coolant, Washer) | — | — | 392.7 | |
| Belts & Hoses Visual | — | — | 393.95 | |
| Battery & Charging System | — | — | 393.33 | |
| Air Brake Leak Test | — | — | 393.55 | |
| Suspension & Steering Play | — | — | 393.209 | |
| Exhaust System Inspection | — | — | 393.83 |
Technology That Makes PM Scheduling Smarter
Modern fleets do not rely on manual mileage tracking to trigger PM work orders. OxMaint integrates with three technology layers that automatically surface the right PM at the right time — eliminating the human error that causes most PM misses.
Real mileage pulled from the vehicle ECU daily. PM triggers fire on actual odometer reading — not estimates. DTC fault codes open maintenance work orders automatically.
Pattern recognition across fleet repair history surfaces early warning signals — a unit burning oil 30% faster than fleet average gets a PM trigger before it fails on the road.
When OxMaint schedules a PM, it checks parts inventory automatically. If oil filters or brake pads are below reorder level, a purchase order fires in your ERP — shop is always ready when the unit arrives.
OxMaint's mileage-triggered PM cut our oil change overruns from 38% of our fleet to under 4% in 90 days. That alone paid for the software three times over — fewer engine issues, lower repair bills, and cleaner DOT records.
Frequently Asked Questions
Never Miss a PM Again.
Mileage-triggered, DOT-ready PM schedules — live in under 2 weeks.
