GarageDex

2023 Honda Civic transmission fluid capacity and fluid specs

GarageDex's fluid data shows the 2023 Honda Civic (K20C1 2L 4-cylinder FE-FL) uses the SDEM manual transmission, which holds 2.3 quarts (2.2 L) of fluid as a total fill. Other engines on this year hold 2 to 8 quarts - see the table. Brake fluid is DOT 3.

Shop transmission fluid Match the specification on the bottle to your manual

Key takeaways

  • Transmission: SDEM manual transmission, 2.3 qt (2.2 L) total fill.
  • Total fill is the whole system; a drain-and-refill takes a third to half.
  • Brake fluid: DOT 3.
  • Fluid specification is not named by the source - use the owner's manual.
2023 Honda Civic fluids by engine
EngineTransmissionTotal fillFluid specBrake fluidGear oil
K20C1 2L 4-cylinder FE-FLSDEM manual2.3 qt (2.2 L)per owner's manualDOT 3-
K20C2 2L 4-cylinder FE-FLJRNC CVT6.4 qt (6.1 L)per owner's manualDOT 3-
L15BY 1.5L 4-cylinder FE-FLM5JA CVT8 qt (7.6 L)per owner's manualDOT 3-
L15CA 1.5L 4-cylinder FE-FLE5PM manual2 qt (1.9 L)per owner's manualDOT 3-

Fluids for the 2023 Honda Civic

Buy fluid that states the specification your manual names. Multi-vehicle fluids list the specs they meet on the back label - if yours is not listed, it is the wrong bottle.

Transmission fluidYou need about 3 quarts for a full fillShop fluid DOT 3 brake fluidA quart covers a full flushShop brake fluid Fluid transfer pumpMost modern transmissions have no dipstick tube - you fill from belowShop pumps

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Other 2023 Honda Civic specs

All specsEngine oilCoolant capacityMaintenance schedule

Other Civic years

202620252024202220212020201920182017201620152014201320122011201020092008200720062005

Source: World's Best Oil (AMSOIL dealer cross-reference). Capacities are total system fills; a drain-and-refill takes less. Where no fluid specification is shown, the source lists only a catalog code, so use the specification printed in your owner's manual - the wrong transmission fluid damages a transmission.

Gear counts (for example "10-speed automatic") are from the U.S. EPA / DOE fuel economy listing for the same engine.