Showing specs for all NA & NB Miatas

Five-speed change control case — oil specification & capacity (1992)

4.9–5.8 cu in80–95 cc80–95 cc4.9–5.8 cu inManual transmission gear oil; API service GL-4 or GL-5; All season: SAE 75W-90; Above 10°C (50°F): SAE 80W-90
Factory manualTaken from a Mazda factory workshop manual, with page citation.
Procedure

Separate change control case quantity after extension-housing removal or transmission overhaul. Do not substitute this for the main transmission oil capacity.

Applies to
  • NA 1992 (B6, 5MT)
  • Verified in: 1992 Mazda MX-5 Miata Workshop Manual
Sources
  • 1992 Mazda MX-5 Miata Workshop ManualTier 1
    Part no. 1271-10-91G (9999-95-0428-92)
    Page J–47 (PDF p. 391)
    4.9–5.8 cu in80–95 cc80–95 cc4.9–5.8 cu inManual transmission gear oil; API service GL-4 or GL-5; All season: SAE 75W-90; Above 10°C (50°F): SAE 80W-90
    Printed: “Grade: API service GL-4 or GL-5 All season: SAE 75W-90 Above 10°C (50°F): SAE 80W-90 Specified amount: 80–95 cc (4.9–5.8 cu in)”

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