🔧 Truck Maintenance Scheduler
Enter your odometer and annual mileage to see the next preventive-maintenance items — oil, DPF, brakes, transmission, tires, and the annual DOT inspection — ranked by how soon they are due, with a next-due mileage and estimated date.
🔧 Upcoming preventive maintenance
| Service | Category | Next due (mi) | Est. date |
|---|---|---|---|
| Chassis lube / grease pointsKingpins, tie-rods, driveline, and 5th-wheel. | Chassis | 50,000 (5,000 to go) | 2026-10-02 |
| Brake & air-system inspectionCheck lining, slack adjusters, air dryer, and reservoirs. | Brakes | 50,000 (5,000 to go) | 2026-10-02 |
| Engine oil & filter changeSevere / stop-start duty may shorten this to 10,000–12,000 mi. | Engine | 60,000 (15,000 to go) | 2027-02-02 |
| Tire rotation & pressure checkMileage-driven; also inspect for irregular wear and correct inflation. | Tires | 60,000 (15,000 to go) | 2027-02-02 |
| Air filter serviceReplace sooner in dusty job-site conditions. | Engine | 60,000 (15,000 to go) | 2027-02-02 |
| Fuel / water-separator filterDiesel fuel filters and the water separator. | Engine | 60,000 (15,000 to go) | 2027-02-02 |
| DOT annual inspectionFederally required annual roadworthiness inspection. | Compliance | — | 2027-08-02 |
| Transmission serviceFluid and filter; interval depends on manual vs. automated. | Drivetrain | 100,000 (55,000 to go) | 2028-06-02 |
| Coolant flush & testTest SCAs / nitrite levels between flushes. | Cooling | 150,000 (105,000 to go) | 2028-08-02 |
| DPF clean / forced regen checkDiesel particulate filter ash cleaning; watch regen frequency. | Emissions | 150,000 (105,000 to go) | 2028-08-02 |
These are general preset intervals. Actual service intervals vary by make, engine, and duty cycle (severe / stop-start use shortens them). Confirm every interval against your OEM service manual and a qualified diesel technician; the DOT annual inspection is a legal requirement.
Preventive beats reactive
An on-schedule oil change or air-system check is cheap next to a roadside breakdown, a failed inspection, or a clogged DPF. Laying the intervals out against your real mileage turns a vague sense of “it's about due” into concrete dates you can build into dispatch.
Use it as a first draft, then tighten intervals for severe duty and confirm the specifics in your OEM manual with a trusted technician.
❓ Frequently Asked Questions
How does the scheduler decide what is due?
Each service has a mileage interval and/or a time interval; whichever comes sooner governs. From your current odometer it finds the next multiple of the mileage interval, and from your average annual mileage it estimates the date you will reach it. Time-only items like the DOT inspection are projected purely by date.
What services are included?
A core heavy-truck set: engine oil and filter, chassis lube, tire rotation and pressure, brake and air-system inspection, air and fuel/water-separator filters, coolant flush, transmission service, DPF (diesel particulate filter) cleaning and regen check, and the annual DOT inspection.
Why are the intervals only a starting point?
Manufacturers set their own intervals, and severe or stop-start duty — short hauls, heavy loads, dusty job sites, lots of idling — shortens many of them. The presets here are typical medium/heavy-duty figures meant to give you a realistic first draft, not a factory schedule for your exact truck.
Can I rely on this for compliance and safety?
No — these are general estimates. Always confirm every interval against your OEM service manual and a qualified diesel technician, and treat the DOT annual inspection as a legal requirement. This tool is a planning aid, not professional maintenance or compliance advice.