# Engine oil pressure at 3,000 rpm (NB1)

Canonical URL: https://miatatorque.com/spec/engine-oil-pressure-3000rpm-nb1/

Applicability: NB 1999–2000 (BP-4W) — Other years inferred from 1999 factory evidence.

Confidence: fsm

295–392 kPa {3.0–4.0 kgf/cm², 43–56 psi} at 3,000 rpm

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-pressure-3000rpm-nb1",
  "name": "Engine oil pressure at 3,000 rpm (NB1)",
  "aliases": [],
  "applies_to": [
    {
      "gen": "NB",
      "years": [
        1999,
        2000
      ],
      "engines": [
        "BP-4W"
      ],
      "note": "Other years inferred from 1999 factory evidence."
    }
  ],
  "kind": "non-torque",
  "value_text": "295–392 kPa {3.0–4.0 kgf/cm², 43–56 psi} at 3,000 rpm",
  "procedure": {
    "notes": "Warm engine to normal operating temperature. Measure running pressure with factory gauge fitted in oil-pressure-switch hole. Pressure varies with oil viscosity and temperature. Upper printed psi bound is exactly 56. Repeated in technical data 01–50–1 (PDF312)."
  },
  "confidence": "fsm",
  "sources": [
    {
      "source": "fsm-1999",
      "page": "01–11–2 (PDF p. 215)",
      "as_printed": "Oil pressure\n295—392 kPa\n{3.0—4.0 kgf/cm², 43—56 psi} [3,000 rpm]",
      "verified_years": [
        1999,
        1999
      ],
      "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": [],
  "system": "lubrication",
  "component": "inventory-pass-2026-10",
  "componentName": "Service measurements and fasteners",
  "sequence_diagrams": [],
  "url": "https://miatatorque.com/spec/engine-oil-pressure-3000rpm-nb1/"
}
```