Lexus 2015 RX350 Owner's Manual page 107

STEP 4
STEP 5
Fuel types
■
Unleaded gasoline (Octane rating 87 [Research Octane Number 91] or higher)
Pull the lever.
Install the auxiliary box using the clips.
I n f o r ma t i o n P r o v i d e d b y :
1-5. Refueling
1
107