Mazda MX-5 / Miata, NB (EU)

Automatic transmission fluid capacity & service interval

Mazda MX-5 / Miata, NB (EU) automatic transmission fluid capacity is 6,7 liters. Service intervals require checks every 24 months or 30000 km. The data covers 4 configurations.

The configuration chart below lists fill volumes and service intervals for each engine and trim variant.

TypeSpecifications
MX-5 / Miata 1.6 (2000-2005)
  • Use: Normal
  • Capacity 6,7 liter
  • Check 24 months/ 30000 km
  • Code: SB4A-EL 4/1
MX-5 / Miata 1.8 (2000-2005)
  • Use: Normal
  • Capacity 6,7 liter
  • Check 24 months/ 30000 km
  • Code: SB4A-EL 4/1
MX-5 / Miata 1.6 (1997-2000)
  • Use: Normal
  • Capacity 6,7 liter
  • Check 24 months/ 30000 km
  • Code: SB4A-EL 4/1
MX-5 / Miata 1.8 (1997-2000)
  • Use: Normal
  • Capacity 6,7 liter
  • Check 24 months/ 30000 km
  • Code: SB4A-EL 4/1

Additional Notes

  • The Mazda MX-5 / Miata NB (EU) automatic transmission carries a fluid capacity of 6.7 liters across all four configurations covered by these specifications, spanning both the 1.6 and 1.8 engine variants from 1997-2005.
  • A capacity figure of 6.7 liters is consistent with a total system fill, meaning the value accounts for fluid held within the torque converter and transmission casing together, rather than a partial drain-and-refill quantity.
  • The 1.6-liter variant produced from 1997-2000 and the revised 1.6-liter variant from 2000-2005 share an identical automatic transmission fluid capacity of 6.7 liters, indicating no change in transmission hardware between those two production periods for that engine.
  • The same capacity consistency applies to the 1.8-liter variants across 1997-2000 and 2000-2005, with both specifying 6.7 liters, which reflects a uniform transmission unit across the engine displacement options in the NB generation.
  • All four configurations carry a service interval defined as a fluid check every 24 months or 30,000 km, whichever comes first, under normal use conditions.
  • The interval of 30,000 km is relatively short by general automatic transmission service standards, placing the fluid check on a schedule more aligned with routine maintenance cycles than extended-drain practices.
  • The service interval is specified as a check rather than a full fluid replacement, meaning the interval marks a point at which fluid condition and level are to be assessed rather than an unconditional drain-and-fill event.
  • Normal use conditions govern all four service interval entries, meaning the 24-month or 30,000 km check interval applies to standard operating environments without adjustment for more demanding driving conditions.

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