Toyota 2014 Prius Manual page 373

4-3. Do-it-yourself maintenance
■
Adding engine oil
Make sure to check the oil type and prepare the items needed before
adding oil.
Engine oil selection
Oil quantity
(Low  Full)
Item
STEP 1
Remove the oil filler cap by turning it counterclockwise.
STEP 2
Add engine oil slowly, checking the dipstick.
STEP 3
Install the oil filler cap by turning it clockwise.
370
If the oil level is below or near
the low level mark, add engine
oil of the same type as that
already in the engine.
P. 499
1.6 qt. (1.5 L, 1.3 Imp. qt.)
Clean funnel