# 5-speed manual transmission oil type and capacity (1999)

Canonical URL: https://miatatorque.com/spec/manual-transmission-oil-capacity-1999/

Applicability: NB 1999 (BP-4W, 5MT)

Confidence: fsm

2 L / 2.1 US qt / 1.8 Imp qt · Manual transmission gear oil; API service GL-4 or GL-5; SAE 75W–90 (all season); SAE 80W–90 above 10°C (50°F)

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": "manual-transmission-oil-capacity-1999",
  "name": "5-speed manual transmission oil type and capacity (1999)",
  "aliases": [
    "5-speed manual transmission oil type and capacity",
    "Manual transmission gear oil",
    "API service GL-4 or GL-5",
    "SAE 75W–90 (all season); SAE 80W–90 above 10°C (50°F)"
  ],
  "applies_to": [
    {
      "gen": "NB",
      "years": [
        1999,
        1999
      ],
      "engines": [
        "BP-4W"
      ],
      "trans": [
        "5MT"
      ]
    }
  ],
  "kind": "capacity",
  "capacity": {
    "l": [
      2,
      2
    ],
    "qt_us": [
      2.1,
      2.1
    ],
    "qt_imp": [
      1.8,
      1.8
    ]
  },
  "fluid": {
    "type": "Manual transmission gear oil",
    "viscosity": "SAE 75W–90 (all season); SAE 80W–90 above 10°C (50°F)",
    "standard": "API service GL-4 or GL-5"
  },
  "procedure": {
    "notes": "Check the oil level at the check plug hole, following the cited factory manual."
  },
  "confidence": "fsm",
  "sources": [
    {
      "source": "fsm-1999",
      "page": "05–11–1",
      "as_printed": "API service GL-4 or GL-5\nSAE 75W–90 (All season) or\nSAE 80W–90 (Above 10 °C {50 °F})\n2.0 L {2.1 US qt, 1.8 Imp qt}",
      "capacity": {
        "l": [
          2,
          2
        ],
        "qt_us": [
          2.1,
          2.1
        ],
        "qt_imp": [
          1.8,
          1.8
        ]
      },
      "fluid": {
        "type": "Manual transmission gear oil",
        "viscosity": "SAE 75W–90 (all season); SAE 80W–90 above 10°C (50°F)",
        "standard": "API service GL-4 or GL-5"
      },
      "document": {
        "id": "fsm-1999",
        "tier": 1,
        "title": "1999 Mazda MX-5 Miata Workshop Manual",
        "covers": [
          {
            "gen": "NB",
            "years": [
              1999,
              2000
            ],
            "engines": [
              "BP-4W"
            ]
          }
        ],
        "url": "https://www.mellens.net/mazda/Mazda-Miata-1999-2001.pdf"
      }
    }
  ],
  "jobs": [
    "trans-fluid"
  ],
  "system": "transmission",
  "component": "transmission-fluids",
  "componentName": "Fluids & capacities",
  "url": "https://miatatorque.com/spec/manual-transmission-oil-capacity-1999/"
}
```