{"filters":{"brand":null,"model":null,"year":null,"category":null,"condition":null},"total":8,"schedule":[{"id":"2023-honda-civic-oil-normal","brand":"Honda","model":"Civic","year":2023,"engine":"2.0L I4","drivetrain":"FWD","itemId":"engine-oil-filter","action":"replace","condition":"normal","intervalMiles":10000,"intervalMonths":12,"notes":"Model as an upper-bound interval for seeded API purposes; real parsing should prefer Honda Maintenance Minder logic per VIN and usage.","sourceName":"Honda Owners Manuals and Maintenance Minder references","citationUrl":"https://owners.honda.com/vehicle-information/manuals","item":{"id":"engine-oil-filter","category":"Fluids","name":"Engine oil and filter","system":"Engine lubrication","defaultUnit":"miles-or-months","whyItMatters":"Frequent oil service is the foundation of long engine life and is the interval most owners need to track well."}},{"id":"2023-honda-civic-brake-fluid","brand":"Honda","model":"Civic","year":2023,"engine":"2.0L I4","drivetrain":"FWD","itemId":"brake-fluid","action":"replace","condition":"both","intervalMiles":null,"intervalMonths":36,"notes":"Seeded time-based interval to represent a moisture-sensitive service item; final interval should be verified per exact manual.","sourceName":"Honda Owners Manuals and Maintenance Minder references","citationUrl":"https://owners.honda.com/vehicle-information/manuals","item":{"id":"brake-fluid","category":"Fluids","name":"Brake fluid","system":"Braking system","defaultUnit":"months","whyItMatters":"Brake fluid absorbs moisture over time, reducing braking consistency and increasing corrosion risk."}},{"id":"2021-mazda3-oil-severe","brand":"Mazda","model":"Mazda3","year":2021,"engine":"2.5L I4","drivetrain":"FWD","itemId":"engine-oil-filter","action":"replace","condition":"severe","intervalMiles":5000,"intervalMonths":6,"notes":"Based on the severe driving schedule pattern shown in Mazda scheduled maintenance documentation.","sourceName":"Mazda Scheduled Maintenance PDFs","citationUrl":"https://www.mazdausa.com/siteassets/global-resources/vehicle-resources/owner-manuals/2021/m3s/2021-mazda3-sedan-hatchback-scheduled-maintenance.pdf","item":{"id":"engine-oil-filter","category":"Fluids","name":"Engine oil and filter","system":"Engine lubrication","defaultUnit":"miles-or-months","whyItMatters":"Frequent oil service is the foundation of long engine life and is the interval most owners need to track well."}},{"id":"2021-mazda3-air-filter-normal","brand":"Mazda","model":"Mazda3","year":2021,"engine":"2.5L I4","drivetrain":"FWD","itemId":"engine-air-filter","action":"inspect","condition":"normal","intervalMiles":30000,"intervalMonths":24,"notes":"Seed interval demonstrating inspection-oriented maintenance, which must be distinct from replacement actions.","sourceName":"Mazda Scheduled Maintenance PDFs","citationUrl":"https://www.mazdausa.com/siteassets/global-resources/vehicle-resources/owner-manuals/2021/m3s/2021-mazda3-sedan-hatchback-scheduled-maintenance.pdf","item":{"id":"engine-air-filter","category":"Filters and ignition","name":"Engine air filter","system":"Intake","defaultUnit":"miles-or-months","whyItMatters":"A neglected air filter can reduce efficiency and increase engine strain over time."}},{"id":"2020-toyota-camry-coolant","brand":"Toyota","model":"Camry","year":2020,"engine":"2.5L I4","drivetrain":"FWD","itemId":"engine-coolant","action":"replace","condition":"both","intervalMiles":100000,"intervalMonths":120,"notes":"Representative long-life coolant interval for seeded API shape; extract exact wording and repeat interval from Toyota maintenance guides.","sourceName":"Toyota Owner's Manuals and Warranty & Maintenance Guides","citationUrl":"https://assets.sia.toyota.com/publications/en/om-s/OM35729U/pdf/OM35729U_edited.pdf","item":{"id":"engine-coolant","category":"Fluids","name":"Engine coolant","system":"Cooling system","defaultUnit":"miles-or-months","whyItMatters":"Coolant condition affects thermal control, corrosion resistance, and head-gasket and water-pump life."}},{"id":"2020-toyota-camry-tire-rotation","brand":"Toyota","model":"Camry","year":2020,"engine":"2.5L I4","drivetrain":"FWD","itemId":"tire-rotation","action":"rotate","condition":"both","intervalMiles":5000,"intervalMonths":6,"notes":"Frequent tire rotation is a good example of a high-visibility maintenance item owners can follow easily.","sourceName":"Toyota Owner's Manuals and Warranty & Maintenance Guides","citationUrl":"https://assets.sia.toyota.com/publications/en/om-s/OM35729U/pdf/OM35729U_edited.pdf","item":{"id":"tire-rotation","category":"Chassis and wear items","name":"Tire rotation","system":"Tires","defaultUnit":"miles","whyItMatters":"Routine tire rotation helps preserve tire life, ride quality, and even tread wear."}},{"id":"2019-subaru-outback-rear-diff","brand":"Subaru","model":"Outback","year":2019,"engine":"2.5L H4","drivetrain":"AWD","itemId":"rear-differential-fluid","action":"replace","condition":"severe","intervalMiles":30000,"intervalMonths":36,"notes":"AWD driveline service should remain a first-class interval category in the product model.","sourceName":"Subaru Warranty and Maintenance Booklets","citationUrl":"https://techinfo.subaru.com/stis/#/warrantyBooklet","item":{"id":"rear-differential-fluid","category":"Drivetrain and transmission","name":"Rear differential fluid","system":"Driveline","defaultUnit":"miles-or-months","whyItMatters":"Fresh differential fluid protects gears and bearings, especially on AWD vehicles and vehicles that tow."}},{"id":"2018-ford-f150-transmission","brand":"Ford","model":"F-150","year":2018,"engine":"5.0L V8","drivetrain":"4WD","itemId":"automatic-transmission-fluid","action":"service","condition":"severe","intervalMiles":30000,"intervalMonths":36,"notes":"Seeded to reflect special operating schedules such as towing, hauling, and frequent stop-and-go use.","sourceName":"Ford Owner Support and Scheduled Maintenance Guide PDFs","citationUrl":"https://www.fordservicecontent.com/Ford_Content/vdirsnet/OwnerManual/Home/Index","item":{"id":"automatic-transmission-fluid","category":"Drivetrain and transmission","name":"Automatic transmission fluid","system":"Transmission","defaultUnit":"miles-or-months","whyItMatters":"Transmission fluid condition has a huge effect on shift quality, heat management, and gearbox longevity."}}]}