GarageDex

2015 Hyundai Sonata transmission fluid capacity and fluid specs

GarageDex's fluid data shows the 2015 Hyundai Sonata (G4KH 2L 4-cylinder LF) uses the A6LF2 automatic transmission, which holds 8.2 quarts of fluid as a total fill. Other engines on this year hold 6.3 to 8.2 quarts - see the table. Brake fluid is DOT 3.

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

Key takeaways

  • Transmission: A6LF2 automatic transmission, 8.2 qt 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.
2015 Hyundai Sonata fluids by engine
EngineTransmissionTotal fillFluid specBrake fluidGear oil
G4FJ 1.6L 4-cylinder LF--per owner's manualDOT 3-
G4KH 2L 4-cylinder LFA6LF2 automatic8.2 qtper owner's manualDOT 3-
G4KJ 2.4L 4-cylinder LFA6MF2H automatic6.3 qtper owner's manualDOT 3-
G4KJ 2.4L 4-cylinder LFA6MF2-1 automatic7.5 qtper owner's manualDOT 3-

Fluids for the 2015 Hyundai Sonata

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 9 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 2015 Hyundai Sonata specs

All specsEngine oilCoolant capacityMaintenance schedule

Other Sonata years

20262025202420232022202120202018201720162014201320122011

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.