open gas tank Lexus GS450h 2007 Hybrid system / LEXUS 2007 GS450H THROUGH JUNE 2006 PROD. OWNER'S MANUAL (OM30727U)

59
1-6. Refueling
1
Before driving
Closing the fuel tank cap
After refueling, turn the fuel tank
cap clockwise until you hear a
click. The cap will revolve slightly in
the opposite direction once
released.
Hang the fuel tank cap on the
back of the fuel filler door.STEP4
■Fuel types
Use premium unleaded gasoline. (91 Octane Rating [Research Octane Number
96
] or higher)
■Fuel tank capacity
Approximately 17.2 gal. (65 L, 14.3 Imp. gal.)
■Open fuel filler door warning
P. 4 5 0

489
6-1. Specifications
6
Vehicle specifications
Fuel information
■Fuel tank opening for unleaded gasoline
To help prevent incorrect fueling, your Lexus has a fuel tank opening that only
a
ccommodates the special nozzle on unleaded fuel pumps.
■If premium gasoline is not available
If this premium fuel is not available, you may use unleaded gasoline with an Octane
R
ating of 87 or so (Research Octane Number 91). 
The use of such gasoline may cause the engine to knock or drastically reduce out -
put to protect itself while driving with a heav y
load. To avoid this, refill the tank with
premium unleaded gasoline as soon as possible.
■If your engine knocks
●Consult your Lexus dealer.
●You may occasionally notice light knocking for a short time while accelerating
or driving uphill. This is normal and there is no need for concern.
■Gasoline quality
In very few cases, driveability problems may be caused by the brand of gasoline you
ar
e using. If driveability problems persist, try changing the brand of gasoline. If this
does not correct the problem, consult your Lexus dealer.
Your vehicle must use on ly unleaded gasoline.
Premium unleaded gasoline with an Octane R
ating of 91 (Research
Octane Number 96) or higher required for optimum engine performance.
At minimum, the gasoline you use should meet the specifications of
ASTM D4814 in the U.S.A. an d CGSB3.5-M93 in Canada.

520
GAS STATION INFORMATION
Auxiliary catch leverP. 3 5 8Trunk openerP. 3 0Fuel filler door P. 5 8
Hood lock release lever P. 3 5 8Fuel filler door openerP. 5 8Tire inflation pressureP. 4 8 7
Fuel tank capacity17.2 gal. (65 L, 14.3 lmp.gal.)
Fuel typePremium unleaded gasoline only P. 59, 482
Cold tire inflation 
pressureP. 4 8 7
Engine oil capacity
(Drain and refill)qt. (L, Imp.qt.)
With filler 6.6 (6.3, 5.5)
Without filler 6.2 (5.9
, 5.2)
Engine oil type
“Toyota Genuine Motor Oil” or equivalent
Oil grade: ILSAC multigrade engine oil P. 483
Recommended oil viscosity: SAE 5W-30