MaintenanceSpec does not start with a generic mileage chart. Each published vehicle record begins with manufacturer documentation, then the maintenance information is matched to the vehicle, checked for applicability and reviewed before it appears on the site. If the source does not clearly support a rule, it should not be published as a confirmed vehicle-specific interval.
A record can stop at any point in this process if the documentation is incomplete or the applicability is unclear. Estimated maintenance information is not published simply to complete a vehicle page.
Before maintenance rules are attached to a record, the make, model and model year must match the source being used.
Where the manufacturer separates information by engine, hybrid system, electric powertrain, transmission or another configuration, those differences stay separate. Documentation for one configuration is not assumed to apply to another.
A maintenance item is not just a mileage number.
The source may define a mileage interval, a time interval, an inspection requirement, a condition-based rule or a combination of those.
The wording and conditions around the maintenance item matter, so they are preserved rather than reduced to a generic interval.
Some manufacturer documents give different maintenance instructions for certain types of use. Examples can include towing, dusty roads, repeated short trips, salted roads or other conditions defined by the manufacturer.
When a source gives a separate rule for one of those conditions, it stays separate from the normal-use rule. A severe service schedule is not created when the manufacturer does not provide one.
Not every vehicle with the same model name has identical equipment.
A maintenance rule tied to a specific engine, drivetrain component or optional system is only shown when that equipment applies to the vehicle record. If equipment applicability cannot be confirmed, the rule is held back rather than shown to every configuration.
Published maintenance rules retain the manufacturer document used for the record and, where available, the relevant page or section.
That makes it possible to check the maintenance information against the original material instead of relying on an unsupported table. View the source records.
Before a vehicle schedule is marked published:
A vehicle that does not meet these checks stays unavailable rather than appearing with a partial or estimated maintenance schedule.
Manufacturer documentation is not always written in a way that maps cleanly to a database.
If a maintenance rule is ambiguous, conflicts with another applicable source, or cannot be confidently tied to the vehicle configuration, it is held for review.
Gaps are not filled with a common interval from another vehicle, a forum, a generic maintenance chart or generated text.
A published record can still be reviewed again.
If a source changes, a better manufacturer document becomes available or a correction is reported, the affected record can be checked against the source information again. Report a possible data issue.
Looking for a published schedule? Browse Published Vehicles.
