"engine oil" meaning in English

{
  "forms": [
    {
      "form": "engine oils",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "~"
      },
      "expansion": "engine oil (countable and uncountable, plural engine oils)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "2023 March 22, “Network News: Class 175s withdrawn for safety checks after fires”, in RAIL, number 979, page 13",
          "text": "The rest were undergoing special underbody cleaning safety checks at TfW depots, after speculation that the cause of the incidents may have been a build-up of engine oil and combustible material such as fallen leaves and general detritus.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "Synonym of motor oil"
      ],
      "id": "en-engine_oil-en-noun-QgWy1Zw7",
      "links": [
        [
          "motor oil",
          "motor oil#English"
        ]
      ],
      "synonyms": [
        {
          "tags": [
            "synonym",
            "synonym-of"
          ],
          "word": "motor oil"
        }
      ],
      "tags": [
        "countable",
        "uncountable"
      ],
      "wikipedia": [
        "motor oil"
      ]
    }
  ],
  "word": "engine oil"
}

{
  "forms": [
    {
      "form": "engine oils",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "~"
      },
      "expansion": "engine oil (countable and uncountable, plural engine oils)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English terms with quotations",
        "English uncountable nouns"
      ],
      "examples": [
        {
          "ref": "2023 March 22, “Network News: Class 175s withdrawn for safety checks after fires”, in RAIL, number 979, page 13",
          "text": "The rest were undergoing special underbody cleaning safety checks at TfW depots, after speculation that the cause of the incidents may have been a build-up of engine oil and combustible material such as fallen leaves and general detritus.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "Synonym of motor oil"
      ],
      "links": [
        [
          "motor oil",
          "motor oil#English"
        ]
      ],
      "synonyms": [
        {
          "tags": [
            "synonym",
            "synonym-of"
          ],
          "word": "motor oil"
        }
      ],
      "tags": [
        "countable",
        "uncountable"
      ],
      "wikipedia": [
        "motor oil"
      ]
    }
  ],
  "word": "engine oil"
}