# Engine oil specification (2003)

Canonical URL: https://miatatorque.com/spec/engine-oil-type-2003/

Applicability: NB 2003 (BP-Z3)

Confidence: fsm

Engine oil; API Service SG (Energy Conserving II), SH (Energy Conserving II) or ILSAC (GF I) SJ or ILSAC (GF II); Above –25°C {–13°F}: SAE 10W-30; –30—37°C {–22—98°F}: SAE 5W-30

Always confirm against your factory manual. Match every restriction and follow all stages and procedure notes. Disputed claims must not be automatically resolved. The complete record below preserves every printed unit, source claim and procedure.

```json
{
  "id": "engine-oil-type-2003",
  "name": "Engine oil specification (2003)",
  "aliases": [
    "Engine oil specification",
    "Engine oil type"
  ],
  "applies_to": [
    {
      "gen": "NB",
      "years": [
        2003,
        2003
      ],
      "engines": [
        "BP-Z3"
      ]
    }
  ],
  "kind": "fluid",
  "fluid": {
    "type": "Engine oil",
    "viscosity": "Above –25°C {–13°F}: SAE 10W-30; –30—37°C {–22—98°F}: SAE 5W-30",
    "standard": "API Service SG (Energy Conserving II), SH (Energy Conserving II) or ILSAC (GF I) SJ or ILSAC (GF II)"
  },
  "procedure": {
    "notes": "Viscosity conditions follow the oil-replacement procedure. The technical table on PDF p. 904 instead labels 5W-30 below 0°C (32°F); this narrower table entry is preserved as another source claim."
  },
  "confidence": "fsm",
  "sources": [
    {
      "source": "fsm-2003",
      "page": "PDF pp. 626–627",
      "as_printed": "SG (Energy Conserving II) , SH (Energy Conserving II) or ILSAC (GF I) SJ or ILSAC (GF II)\nAbove –25°C {–13°F}: SAE 10W-30\n–30—37°C {–22—98°F}: SAE 5W-30",
      "fluid": {
        "type": "Engine oil",
        "viscosity": "Above –25°C {–13°F}: SAE 10W-30; –30—37°C {–22—98°F}: SAE 5W-30",
        "standard": "API Service SG (Energy Conserving II), SH (Energy Conserving II) or ILSAC (GF I) SJ or ILSAC (GF II)"
      },
      "document": {
        "id": "fsm-2003",
        "tier": 1,
        "title": "2003 Mazda MX-5 Miata Workshop Manual (electronic manual capture)",
        "covers": [
          {
            "gen": "NB",
            "years": [
              2003,
              2003
            ],
            "engines": [
              "BP-Z3"
            ]
          }
        ],
        "note": "Normally aspirated BP procedures audited; turbo procedures are covered separately."
      }
    },
    {
      "source": "fsm-2003",
      "page": "PDF p. 904",
      "as_printed": "Above −25°C {−13°F}\nSAE 10W-30\nBelow 0°C {32°F}\nSAE 5W-30",
      "fluid": {
        "type": "Engine oil",
        "viscosity": "Above −25°C {−13°F}: SAE 10W-30; Below 0°C {32°F}: SAE 5W-30"
      },
      "note": "Technical table temperature condition differs from the replacement procedure; the resolved record follows PDF pp. 626–627.",
      "document": {
        "id": "fsm-2003",
        "tier": 1,
        "title": "2003 Mazda MX-5 Miata Workshop Manual (electronic manual capture)",
        "covers": [
          {
            "gen": "NB",
            "years": [
              2003,
              2003
            ],
            "engines": [
              "BP-Z3"
            ]
          }
        ],
        "note": "Normally aspirated BP procedures audited; turbo procedures are covered separately."
      }
    },
    {
      "source": "owners-2003",
      "page": "10-4",
      "as_printed": "API Service\nILSAC\nSG (Energy Conserving II)\n—\nSH (Energy Conserving II)\nGF-I\nSJ\nGF-II\nSL\nGF-III",
      "fluid": {
        "type": "Engine oil",
        "standard": "API SG (Energy Conserving II), SH (Energy Conserving II) / ILSAC GF-I, SJ / ILSAC GF-II, SL / ILSAC GF-III",
        "notes": "Choose viscosity using the temperature chart on page 8-13 of the cited owner’s manual."
      },
      "document": {
        "id": "owners-2003",
        "tier": 1,
        "title": "2003 Mazda MX-5 Miata Owner’s Manual",
        "covers": [
          {
            "gen": "NB",
            "years": [
              2003,
              2003
            ],
            "engines": [
              "BP-Z3"
            ]
          }
        ],
        "url": "https://www.mazdausa.com/siteassets/pdf/owners-optimized/2003/mx5-miata/2003-mx-5-miata-owners-manual.pdf"
      }
    }
  ],
  "jobs": [
    "oil-change"
  ],
  "system": "lubrication",
  "component": "lubrication-fluids",
  "componentName": "Fluids & capacities",
  "sequence_diagrams": [],
  "url": "https://miatatorque.com/spec/engine-oil-type-2003/"
}
```