Vehicles

Fluids of a model year.

engine_oil is the viscosity grade the maker certified the engine with, as EPA's Fuel Economy Guide records it: not a reading of the owner's manual, and with no capacity. engine_oil_checked, transmission, coolant, refrigerant and brake are records a person read from the maker's own documents, each with its source and the day it was checked. They are empty for a model year nobody has recorded: nothing is estimated.

get/v1/vehicles/{id}/fluids

Request

Base URL: https://open.wenmarpro.com
URL: https://open.wenmarpro.com/v1/vehicles/{id}/fluids
Auth: none declared

Path parameters

idstring required

A vehicle id.

Response

The engine oil grades by engine, and the records read by hand.

as_ofstring nullable

The day EPA's oil grades were current. null on a server without them.

attributionstring[] required

checked_as_ofstring nullable

The day of the newest hand-read record the server holds, for any vehicle. null on a server without them.

Example response

{
  "as_of": "2026-09-29",
  "brake": [
    {
      "checked": "2026-10-12",
      "engine": {
        "id": "2-7l-v6",
        "label": "2.7L V6",
        "vin8": "P"
      }
    }
  ],
  "checked_as_of": "2026-10-12",
  "coolant": [
    {
      "checked": "2026-10-12",
      "engine": {
        "id": "2-7l-v6",
        "label": "2.7L V6",
        "vin8": "P"
      }
    }
  ],
  "engine_oil": [
    {
      "as_written": [
        "5W30 GF-5"
      ],
      "engine": {
        "id": "2-7l-v6",
        "label": "2.7L V6",
        "vin8": "P"
      },
      "grades": [
        "5W-30"
      ]
    }
  ],
  "engine_oil_checked": [
    {
      "checked": "2026-10-12",
      "engine": {
        "id": "2-7l-v6",
        "label": "2.7L V6",
        "vin8": "P"
      }
    }
  ],
  "refrigerant": [
    {
      "checked": "2026-10-12",
      "engine": {
        "id": "2-7l-v6",
        "label": "2.7L V6",
        "vin8": "P"
      }
    }
  ],
  "transmission": [
    {
      "checked": "2026-10-12",
      "engine": {
        "id": "2-7l-v6",
        "label": "2.7L V6",
        "vin8": "P"
      }
    }
  ],
  "vehicle": {
    "id": "2018_ford_f-150",
    "make": "Ford",
    "model": "F-150"
  }
}

Changes

No recorded changes to this operation across all 1 revision of this API.