octane Lexus GS F 2015 Owner's Manuals

611
8
8-1. Specifications
Vehicle specifications
GS350_200t_GS F_OM_OM30E87E_(EE)
XGS F
*: If unleaded gasoline with an octane rating
of 98 RON is not available, unleaded gaso-
line with an octane rating of 95 RON may be used with no detriment to engine dura-
bility or driveability.
Model2UR-GSE
Ty p e8-cylinder V type, 4-cycle, gasoline
Bore and stroke94.0 × 89.5 mm (3.70 × 3.52 in.)
Displacement4969 cm3 (303.2 cu. in.)
Valve clearance (engine cold)Intake: 0.15 mm (0.006 in.)
Exhaust: 0.22 mm (0.009 in.)
Drive belt tensionAutomatic adjustment
Fuel
Fuel type
EU area:
Unleaded gasoline conforming to
European standard EN228 only
Except EU area:
Unleaded gasoline only
Research
Octane
NumberGS350/GS200t95 or higher
GS F98 or higher*
Fuel tank capacity (Reference)66 L (17.4 gal., 14.5 Imp.gal.)

6268-1. Specifications
GS350_200t_GS F_OM_OM30E87E_(EE)
Fuel information
■Use of ethanol blended gasoline in a gasoline engine
Lexus allows the use of ethanol blended gasoline where the ethanol content is up to 10%.
Make sure that the ethanol blended gasoline to be used has a Research Octane Number
that follows the above.
■If your engine knocks
●Consult any authorized Lexus dealer or repairer, or another duly qualified and
equipped professional.
●You may occasionally notice light knocking for a short time while accelerating or driv-
ing uphill. This is normal and there is no need for concern.
XGS350 GS200t
EU area:
You must only use unleaded gasoline conforming to European standard
EN228.
Select unleaded gasoline with a Research Octane Number of 95 or higher
for optimum engine performance.
Except EU area:
You must only use unleaded gasoline.
Select unleaded gasoline with a Research Octane Number of 95 or higher
for optimum engine performance.
XGS F
EU area:
You must only use unleaded gasoline conforming to European standard
EN228.
Select unleaded gasoline with a Research Octane Number of 98 or higher
for optimum engine performance.
Except EU area:
You must only use unleaded gasoline.
Select unleaded gasoline with a Research Octane Number of 98 or higher
for optimum engine performance.