Toyota 2013 Avalon Hybrid Owner's Manual page 432

Lubrication system
Oil capacity
Drain and refill (Reference
With filter
Without filter
*
: The engine oil capacity is a reference quantity to be used when changing
the engine oil. Warm up the engine and turn off the hybrid system, wait
more than 5 minutes, and check the oil level on the dipstick.
AVALON_HV_U (OM41451U)
8-1. Specifications
*
)
4.6 qt. (4.4 L, 3.9 Imp. qt.)
4.2 qt. (4.0 L, 3.5 Imp. qt.)
455
8