Page 71 of 462
70
1-5. Refueling
08_IS350/250_U_(L/O_0708)
Closing the fuel tank capWhen replacing the fuel tank cap,
turn it until a clicking sound is
heard.
After releasing your hand, the cap
will turn slightly to the opposite
direction.
■Fuel types
Use unleaded gasoline. (91 Octane rating [Research Octane Number 96] or
higher)
■Fuel tank capacity (reference)
17.2 gal. (65 L, 14.3 Imp.gal.)
■When the fuel filler door opener is inoperableThe lever can be used to open the fuel filler
door if the fuel filler door cannot be opened
using the inside switch because the battery is
discharged or for any other reason.
Page 422 of 462
421
6-1. Specifications
6
Vehicle specifications
08_IS350/250_U_(L/O_0708)
Fuel information
■Fuel tank opening for unleaded gasoline
To help prevent incorrect fueling, your Lexus has a fuel tank opening that only
accommodates the special nozzle on unleaded fuel pumps.
■If premium gasoline is not available
If 91 rating gasoline cannot be obtained, you may use unleaded gasoline with an
octane rating as low as 87 (Research Octane Rating 91).
■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
are 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 only unleaded gasoline.
Premium unleaded gasoline with an octane rating 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. and CGSB3.5-M93 in Canada.
Page 461 of 462
460
08_IS350/250_U_(L/O_0708)
GAS STATION INFORMATION
Auxiliary catch leverP. 2 8 9Trunk openerP. 4 1Fuel filler door P. 6 9
Hood lock release lever P. 2 8 9Fuel filler door openerP. 6 9Tire inflation pressureP. 4 1 5
Fuel tank capacity17.2 gal. (65 L, 14.3 lmp.gal.)
Fuel typeUnleaded gasoline only P. 70, 409
Cold tire inflation
pressureP. 4 1 5
Engine oil capacity
(Drain and refill)
qt. (L, Imp.qt.)
IS250 IS250
(2WD models) (AWD models) IS350
With filter 6.6 (6.3, 5.5) 6.8 (6.4, 5.7) 6.6 (6.3, 5.5)
Without filter 6.2 (5.9
, 5.2)6.3 (6.0, 5.3) 6.2 (5.9, 5.2)
Engine oil typeToyota Genuine Motor Oil or equivalent
Oil grade: ILSAC multigrade engine oil P. 410
Recommended oil viscosity: SAE 5W-30
