{
  "name": "SAE viscosity grade summary",
  "attribution": "Oil Manual (oilmanual.com) — CC BY 4.0",
  "license": "https://creativecommons.org/licenses/by/4.0/",
  "source": "https://oilmanual.com/oil-viscosity-chart/",
  "documentation": "https://oilmanual.com/datasets/",
  "note": "Educational summary keyed to published SAE J300 grade names. Not a reproduction of the SAE J300 standard or its test limits.",
  "grades": [
    {
      "grade": "0W-8",
      "w": 0,
      "hot": 8,
      "coldStart": "Excellent (extreme cold)",
      "hotFilm": "Very thin (ultra-economy)",
      "url": "https://oilmanual.com/viscosity/0w-8/"
    },
    {
      "grade": "0W-16",
      "w": 0,
      "hot": 16,
      "coldStart": "Excellent (extreme cold)",
      "hotFilm": "Very thin (ultra-economy)",
      "url": "https://oilmanual.com/viscosity/0w-16/"
    },
    {
      "grade": "0W-20",
      "w": 0,
      "hot": 20,
      "coldStart": "Excellent (extreme cold)",
      "hotFilm": "Thin (economy)",
      "url": "https://oilmanual.com/viscosity/0w-20/"
    },
    {
      "grade": "0W-30",
      "w": 0,
      "hot": 30,
      "coldStart": "Excellent (extreme cold)",
      "hotFilm": "Medium",
      "url": "https://oilmanual.com/viscosity/0w-30/"
    },
    {
      "grade": "0W-40",
      "w": 0,
      "hot": 40,
      "coldStart": "Excellent (extreme cold)",
      "hotFilm": "Thicker",
      "url": "https://oilmanual.com/viscosity/0w-40/"
    },
    {
      "grade": "5W-20",
      "w": 5,
      "hot": 20,
      "coldStart": "Very good",
      "hotFilm": "Thin (economy)",
      "url": "https://oilmanual.com/viscosity/5w-20/"
    },
    {
      "grade": "5W-30",
      "w": 5,
      "hot": 30,
      "coldStart": "Very good",
      "hotFilm": "Medium",
      "url": "https://oilmanual.com/viscosity/5w-30/"
    },
    {
      "grade": "5W-40",
      "w": 5,
      "hot": 40,
      "coldStart": "Very good",
      "hotFilm": "Thicker",
      "url": "https://oilmanual.com/viscosity/5w-40/"
    },
    {
      "grade": "5W-50",
      "w": 5,
      "hot": 50,
      "coldStart": "Very good",
      "hotFilm": "Heavy (high-temp/load)",
      "url": "https://oilmanual.com/viscosity/5w-50/"
    },
    {
      "grade": "10W-30",
      "w": 10,
      "hot": 30,
      "coldStart": "Good (milder winters)",
      "hotFilm": "Medium",
      "url": "https://oilmanual.com/viscosity/10w-30/"
    },
    {
      "grade": "10W-40",
      "w": 10,
      "hot": 40,
      "coldStart": "Good (milder winters)",
      "hotFilm": "Thicker",
      "url": "https://oilmanual.com/viscosity/10w-40/"
    },
    {
      "grade": "15W-40",
      "w": 15,
      "hot": 40,
      "coldStart": "Limited in deep cold",
      "hotFilm": "Thicker",
      "url": "https://oilmanual.com/viscosity/15w-40/"
    },
    {
      "grade": "20W-50",
      "w": 20,
      "hot": 50,
      "coldStart": "Limited in deep cold",
      "hotFilm": "Heavy (high-temp/load)",
      "url": "https://oilmanual.com/viscosity/20w-50/"
    }
  ]
}