2018 International LT: Factory Maintenance Schedule
AI-generated reference. Always verify torque values, fluid capacities, intervals, and procedures against the manufacturer's service manual or OEM repair information before performing work. Repairius is not liable for damage from acting on this content without verification.
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Quick Reference: 2018 International LT Maintenance Schedule
| Mileage | Service | Notes |
|---|---|---|
| 5,000 | Tire Rotation | Visually inspect for irregular wear. |
| 10,000 | Oil & Filter Change (Normal Duty) | Use approved synthetic blend oil. |
| 15,000 | Tire Rotation, Cabin Air Filter | |
| 30,000 | Fuel Filter, Engine Air Filter | Replace if driving in dusty conditions. |
| 60,000 | Transmission Fluid Service, Brake Fluid Flush | Check for leaks, inspect fluid condition. |
| 100,000 | Spark Plugs, Coolant Flush | Inspect wires and boots for wear. |
| 150,000 | Timing Belt/Chain Inspection, Accessory Belt | Check for cracks, stretching, or wear. |
Severe-Duty Schedule
For trucks operating under severe conditions—towing heavy loads, frequent short trips, extensive idling, or in dusty or cold climates—the maintenance schedule should be adjusted:
- Oil & Filter Change: Every 5,000 miles or 3 months.
- Tire Rotation: Every 3,000 miles to ensure even wear.
- Fuel Filter: Every 15,000 miles.
- Engine Air Filter: Every 15,000 miles or as needed based on visual inspection.
Known Issues by Mileage
- 30,000 Miles: Premature brake wear, especially on mountainous routes.
- 60,000 Miles: EGR valve and cooler issues, leading to check engine lights.
- 100,000 Miles: DPF (Diesel Particulate Filter) clogs, requiring forced regeneration or cleaning.
- 150,000 Miles: Turbocharger actuator failures, resulting in loss of power.
Estimated Cost Per Service
- Oil & Filter Change: $150 - $250
- Tire Rotation: $50 - $100
- Fuel/Air Filters: $200 - $400
- Transmission Service: $400 - $700
- Coolant Flush: $300 - $500
- Timing Belt/Chain: $800 - $1,500
What You Can DIY vs. Shop
- DIY: Tire rotation, cabin/engine air filter replacement, accessory belt inspection.
- Shop: Oil and filter changes, transmission service, brake fluid flushes, timing belt/chain work, and differential service.
Book service on Repairius.
More specs for the 2018 International LT
Oil Capacity & Filter
Capacity, weight, filter PN, drain plug torque, change interval.
Fluid Type Specs
Engine oil, coolant, ATF, diff, brake, PS, DEF — with OEM spec numbers.
Coolant Capacity & Type
Total system capacity, OEM coolant spec, flush interval, bleed tips.
Transmission Fluid & Service
Trans model, fluid spec, capacity, filter PN, service interval.
Torque Specifications
Lug nuts, drain plug, caliper, axle nut, plug, key fasteners.
Brake Pad & Rotor Specs
Pad PNs, rotor size, min thickness, caliper torque.
Tire Size & Pressure
OEM size, cold psi, bolt pattern, wheel size, TPMS.
Battery Size & Group
Group size, CCA, AGM/flooded, dimensions, reset note.
A/C Refrigerant & Oil
R-134a or R-1234yf, charge oz, PAG oil spec.
Bulb Sizes (Headlight, Tail, Fog)
Headlight, fog, tail, turn, reverse, interior.
Towing Capacity & Payload
Max tow, payload, GVWR/GCWR, hitch class by trim.
Fuse Box Diagram & Amperage
Fuse box locations, layout, amps, and what each fuse controls.
Serpentine Belt Routing & Length
Belt routing, length, rib count, OEM + aftermarket PNs.
Wheel Alignment Specifications
Camber, caster, toe ranges (front & rear), adjustability notes.
Paint Color Codes
All factory colors with paint codes, sticker location, touch-up tips.
Wiper Blade Sizes
Driver/passenger/rear blade size, attachment, OEM + cross-refs.
Spark Plug Type & Gap
Plug PN, gap, torque, interval by engine.
Transmission & Axle Gear Ratios
Trans gear ratios, axle ratios, RPO codes, tow vs MPG impact.
Key Fob Programming
DIY programming steps, FCC ID, fob PN, battery, transponder.
Same spec — other model years
Maintenance & repair guides
2018 International LT Maintenance Schedule →
Available maintenance guidance; confirm the manufacturer schedule.
Repair planning references →
Plan the scope of work; detailed procedures need configuration-matched evidence.
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