For transportation businesses, the fleet is the most important asset determining operational efficiency. A well-maintained truck not only ensures delivery schedules but also helps save significant operating costs. So how do you keep vehicles in optimal condition? The answer lies in establishing a scientific truck maintenance plan and implementing it consistently.

Why is regular truck maintenance planning necessary?

Reducing unexpected repair costs

According to statistics from transportation companies, unexpected breakdown repair costs are typically 3-5 times higher than regular maintenance costs. When a critical component like the brake system or engine fails mid-journey, you not only pay for repairs but also incur rescue costs, expenses from delayed deliveries, and may even lose customers.

Regular maintenance helps detect early warning signs, allowing timely intervention before they become serious breakdowns. Changing oil on time can prevent engine wear, and regular brake pad inspections avoid poor braking performance that could cause accidents. This proactive approach helps reduce repair costs significantly over the long term.

Extending vehicle lifespan and value

A properly maintained vehicle can extend its lifespan by 30-50% compared to vehicles without regular care. This means your initial investment is maximized, extending the replacement cycle for new vehicles and reducing financial pressure.

Moreover, when it's time to liquidate or resell vehicles, trucks with complete and clear maintenance records always have much higher value than vehicles without documentation.

Ensuring safety for drivers and cargo

Regular maintenance is not just an economic issue but also a safety responsibility. A vehicle with poor braking system, excessively worn tires, or substandard lighting can cause serious accidents, threatening driver lives and causing property damage.

Improving fleet operational efficiency

When you plan maintenance scientifically, you can proactively schedule maintenance to align with delivery schedules, avoiding situations where vehicles must enter the garage unexpectedly, disrupting transportation plans. This helps optimize vehicle uptime and increase overall fleet productivity.

Principles for building maintenance schedules based on km and time

Dual principle: Km or time - whichever comes first

An effective regular maintenance schedule needs to be based on two parallel criteria: kilometers driven and usage time. You need to perform maintenance when either of these conditions is met, regardless of the other condition.

For example: If your vehicle needs maintenance every 10,000 km or 3 months, even if the vehicle has only traveled 7,000 km but 3 months have passed, you still need to perform maintenance. Conversely, if only 2 months have passed but the vehicle has already traveled 10,000 km, you must also perform maintenance immediately.

Adjusting according to actual operating conditions

Manufacturers typically provide maintenance recommendations for standard usage conditions. However, if your vehicle operates under harsh conditions (poor roads, high temperatures, frequent heavy loads, continuous operation), you should shorten the maintenance cycle by 20-30%.

For example, if the vehicle operates in mountainous areas with complex terrain, instead of maintenance after 10,000 km, you should perform it at 7,000-8,000 km.

Following manufacturer recommendations as the foundation

The vehicle user manual from the manufacturer is the most important document for building a maintenance schedule. This is the result of thousands of hours of testing and research, designed specifically for each vehicle model.

Don't ignore these recommendations even if you think the vehicle is still running well. Many internal problems don't show clearly until it's too late.

Record and monitor closely

Establish a clear recording system for each vehicle in the fleet, including:

  • Current kilometers
  • Last maintenance date
  • Items performed
  • Incurred costs
  • Expected next maintenance kilometers
  • Expected next maintenance date

Regular maintenance items by level

Daily maintenance (check before each trip)

This is the work drivers need to perform before departure:

External inspection:

  • Tire pressure (including spare tire)
  • Tire surface condition, detecting cracks, abnormal wear
  • Lighting (headlights, low beams, turn signals, brake lights)
  • Rearview mirrors
  • Oil and coolant leaks under the chassis

Cabin inspection:

  • Engine oil level
  • Coolant level
  • Brake fluid level
  • Power steering fluid
  • Windshield washer fluid

Operational check:

  • Hand brake and foot brake
  • Horn
  • Steering system
  • Dashboard, warning lights

Level 1 maintenance (5,000 - 10,000 km or 1-2 months)

Main items:

  • Change engine oil and oil filter
  • Check and refill other lubricants
  • Check brake system (brake pads, brake discs)
  • Check and clean air filter
  • Check tire pressure and wear
  • Lubricate joints and bearings
  • Check battery
  • Check belts
  • Clean vehicle, check body

Level 2 maintenance (20,000 - 30,000 km or 6 months)

Includes all Level 1 items, plus:

Additional items:

  • Replace air filter
  • Replace fuel filter
  • Check and replace coolant if needed
  • Check suspension system (shock absorbers, springs)
  • Check steering system (steering mechanism, tie rods)
  • Check drivetrain
  • Wheel alignment and balancing
  • Check electrical system, lights
  • Check exhaust system

Level 3 maintenance (60,000 - 80,000 km or 12 months)

Includes all Level 1 and 2 items, plus:

Additional items:

  • Change transmission oil
  • Change differential oil
  • Replace entire cooling system fluid
  • Replace brake pads or discs if worn
  • Check and replace spark plugs (gasoline vehicles)
  • Replace air conditioning filter
  • Check and clean fuel injectors
  • Check entire electrical system, including ABS system (if equipped)
  • Periodic technical safety inspection

Special maintenance (according to actual condition)

Some parts need replacement when showing signs of damage or on longer cycles:

  • Timing belt: 100,000 - 120,000 km
  • Tires: depending on wear, typically 60,000 - 100,000 km
  • Battery: 2-3 years
  • Shock absorbers: 80,000 - 120,000 km
  • Clutch assembly: 150,000 - 200,000 km

Effective maintenance inspection and implementation process

Establish specific maintenance schedule

Based on transportation plans and expected kilometers for each vehicle, you need to establish a specific maintenance schedule for the month/quarter. This schedule should be shared with:

  • Dispatch management team to arrange replacement vehicles
  • Drivers so they can prepare
  • Garage/maintenance workshop to schedule appointments in advance

Preparation before maintenance

Information gathering:

  • Record issues reported by drivers
  • Review previous maintenance records
  • Prepare list of items to be performed
  • Estimate needed spare parts and materials

Select service provider:

  • Authorized manufacturer workshop: ensures quality but high cost
  • Professional reputable garage: balance between quality and price
  • Internal workshop (if available): saves costs, flexible timing

Monitor implementation process

Regardless of which provider you choose, monitoring is very important:

  • Request progress updates
  • Inspect removed parts (to confirm they actually need replacement)
  • Verify replacement parts are genuine or equivalent
  • Photograph completed items (for record keeping)

Acceptance and test run

After completing maintenance:

  • Check all items according to checklist
  • Test drive the vehicle to ensure everything works normally
  • Check for no oil or water leaks
  • Check safety functions (brakes, lights, horn)

Store documents and update records

After each maintenance, you need to keep:

  • Detailed maintenance sheet
  • Invoices for spare parts and materials
  • Before and after maintenance photos
  • Update kilometers and date in vehicle records
  • Schedule next maintenance

How to track and maintain maintenance records for the fleet

Create individual records for each vehicle

Each vehicle in the fleet needs its own record including:

Basic information:

  • License plate number
  • Chassis number, engine number
  • Year of manufacture
  • Date put into service
  • Technical specifications

Maintenance history:

  • Detailed tracking table for each maintenance
  • Date performed
  • Kilometers at time of maintenance
  • Items performed
  • Parts replaced
  • Cost
  • Service provider
  • Person in charge/supervisor

Repair history:

  • Incidents that occurred
  • Solutions
  • Incurred costs

Use centralized tracking table

In addition to individual vehicle records, you need a summary table for the entire fleet for easy tracking:

Maintenance schedule table:

  • Vertical column: Vehicle list (license plates)
  • Horizontal column: Months of the year
  • Mark months requiring maintenance for each vehicle
  • Use different colors for maintenance levels

Cost tracking table:

  • Maintenance cost per vehicle by month
  • Total fleet cost
  • Comparison with budgeted amount
  • Cost trend analysis

Establish alert system

To avoid missing maintenance schedules, you should:

  • Set reminders on electronic calendar
  • Send email/notifications 1-2 weeks in advance
  • Track daily kilometers to predict when maintenance milestones are reached
  • Have weekly/monthly checklists for review

Define roles and responsibilities

Clearly define who is responsible for what:

  • Drivers: Daily inspection, incident reporting
  • Fleet manager: Schedule maintenance, supervise implementation
  • Accountant: Manage costs, payments
  • Operations director: Approve plans and budgets

TMS applications in truck maintenance management

Automated maintenance scheduling

Modern Transportation Management System (TMS) software like DeliTMS provides integrated maintenance management modules that help:

  • Automatically track kilometers for each vehicle via GPS
  • Calculate maintenance timing based on km and time
  • Send automatic alerts when maintenance is due
  • Create optimal maintenance schedules to avoid operational impact

Centralized electronic record management

Instead of paper records, TMS allows:

  • Store all maintenance records on cloud
  • Access anytime, anywhere
  • Attach images, PDF files
  • Quick search
  • No worry about data loss or damage

Analysis and reporting

TMS provides detailed reports:

  • Summary of maintenance costs by vehicle, by time
  • Efficiency comparison between vehicles
  • Identify vehicles with abnormal costs
  • Forecast future maintenance costs
  • Analyze component lifespan, optimal replacement timing

Integration with operational processes

When using TMS:

  • System automatically removes vehicles from available list when maintenance is due
  • Dispatchers are warned when attempting to assign work to vehicles needing maintenance
  • Drivers receive notifications via mobile app
  • Maintenance approval process is digitized, fast

Supplier and parts management

TMS also supports:

  • Store list of garages, maintenance workshops
  • Evaluate service quality
  • Manage parts inventory
  • Track prices, compare suppliers
  • Automatically create parts orders

Common mistakes to avoid when planning maintenance

Skipping regular maintenance because the vehicle still runs well

This is the most common mistake. Many vehicle owners think that if the vehicle shows no abnormal signs, maintenance isn't needed yet, leading to extended cycles. The consequence is that potential issues aren't detected early, ultimately causing serious and much more expensive breakdowns.

Relying only on one of two criteria (km or time)

Some people only pay attention to kilometers and forget the time factor, or vice versa. In reality, both are important. Lubricating oil can oxidize over time even if the vehicle runs little. Rubber hoses can crack due to weather even if the vehicle sits idle.

Using low-quality parts to save money

Choosing cheap parts of unknown origin may save costs in the short term but causes long-term harm. Low-quality parts have short lifespan, poor performance, and can even damage other components.

Choose genuine parts or OEM (equivalent to genuine) from reputable suppliers. This is a worthwhile investment for vehicle durability.

Not recording or incomplete recording

Many businesses perform maintenance but don't keep complete records. When they need to look up information, they don't know what was done last time, what was replaced, when. This leads to:

  • Missing or duplicating items
  • Difficulty detecting recurring problems
  • No evidence when warranty is needed
  • Reduced vehicle value when reselling

Not training drivers on daily inspections

Drivers are the direct users of vehicles; they can detect abnormalities earliest. However, if not properly trained, they won't know what to check, which signs need immediate reporting.

Organize regular training for drivers on:

  • How to check basic items
  • Recognize abnormal signs
  • Incident reporting procedures
  • Proper vehicle operation to reduce wear

Waiting until there are many items before maintaining at once

Some people think that combining many maintenance items at once saves time and effort. However, this approach can cause vehicles to operate too long in suboptimal condition, increasing breakdown risk.

Follow each maintenance milestone according to plan, don't delay.

Not considering specific operating conditions

Rigidly applying manufacturer recommendations without adjusting to actual conditions is also a mistake. If your vehicle operates in harsh environments (dust, high temperature, poor terrain), you need more stringent maintenance.

Having no contingency plan

Even with careful maintenance scheduling, unexpected incidents can still occur. Without backup vehicles or replacement plans, maintenance will disrupt business operations.

Always have:

  • A few backup vehicles in the fleet
  • Short-term vehicle rental contracts when needed
  • Good relationships with other transportation partners

Planning regular truck maintenance is not just technical work but also a smart business strategy. By investing time and resources in regular maintenance, you will minimize repair costs, extend vehicle lifespan, ensure safety, and improve overall operational efficiency.

Start today by reviewing the current status of your fleet, building a specific maintenance schedule, and considering applying fleet management tools like TMS to automate and optimize the process. This initial investment will certainly bring great long-term benefits to your business.