The problem
Too many moving parts become too many separate trackers.
A basic maintenance log records what happened but often does not tell an owner what needs attention next — especially when date and mileage schedules disagree.
Vehicle system
A low-admin Excel vehicle maintenance tracker for 1–3 personal vehicles, connecting date and odometer schedules with real service history and renewals.

The problem
A basic maintenance log records what happened but often does not tell an owner what needs attention next — especially when date and mileage schedules disagree.
The outcome
Track maintenance by time and odometer, record completed service once, preserve ownership history and keep renewals and follow-ups in one clear record.
Core workflows
Date status + mileage status → one Action Status
Completed linked service → Last Done → Next Due → Command Center
Non-completed service remains history without falsely resetting maintenance
Odometer integrity checks expose missing or inconsistent readings
Renewals → due-date attention without jurisdiction-specific legal calculations
Handoff & History → generated from vehicle records
What is included
Compatibility
Truthful limits
Related systems
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