2012 Lexus IS250C service

580
6-1. Specifications
■Lexus does not recommend blended gasoline
●If you use gasohol in your Lexus, be sure that it has an octane rating no lower
than 87.
●Lexus DOES NOT recommend the use of gasoline containing methanol.
■Lexus does not recommend gasoline containing MMT
Some gasoline contains oc tane enhancing additive called MMT (Methylcyclopen-
tadienyl Manganese Tricarbonyl).
Lexus DOES NOT recommend the use of gasoline that contains MMT. If fuel con-
taining MMT is used, your emission control system may be adversely affected.
The malfunction indicator lamp on the inst rument cluster may come on. If this hap-
pens, contact your Lexus dealer for service.
●Use only gasoline containing a maxi-
mum of 10% ethanol.
DO NOT use any flex-fuel or gasoline
that could contain more than 10% etha-
nol, including from any pump labeled
E15, E30, E50, E85 (which are only
some examples of fuel containing more
than 10% ethanol).DO NOT use gasoline contain-
ing more than 10% ethanol.
(15% ethanol)
(50% ethanol)
(85% ethanol)

587
6-1. Specifications
6
Vehicle specifications
■DOT quality grades
All passenger vehicle tires must co nform to Federal Safety Require-
ments in addition to these grades. Quality grades can be found where
applicable on the tire sidewall between tread shoulder and maximum
section width.
For example: Treadwear 200 Traction AA Temperature A
■ Treadwear
The treadwear grade is a comparative rating based on the wear rate of
the tire when tested under controll ed conditions on a specified gov-
ernment test course.
For example, a tire graded 150 would wear one and a half (1 - 1 /2) times as
well on the government course as a tire graded 100.
The relative performance of tires de pends upon the actual conditions of
their use, however, and may depart significantly from the norm due to varia-
tions in driving habits, service practices and differences in road characteris-
tics and climate.
■ Traction AA, A, B, C
The traction grades, from highest to lowest, are AA, A, B and C, and
they represent the tire's ability to stop on wet pavement as measured
under controlled condit ions on specified government test surfaces of
asphalt and concrete.
A tire marked C may have poor traction performance.
Warning: The traction grade assigned to this tire is based on braking
(straight ahead) traction tests and does not include cornering (turning) trac-
tion.

626
Alphabetical index
Safety connect .......................................394
Scuff lights ................................................359
Seat beltsAdjusting the seat belt........................ 70
Automatic locking retractor.............72
Child restraint system installation ............................................128
Cleaning and maintaining the seat belts .................................... 408
Emergency locking retractor ..........72
How to wear your seat belt............. 70
How your child should wear the seat belt ...........................................73
Pregnant women, proper seat belt use..........................73
Reminder light ..................................... 497
Seat belt extenders ...............................73
Seat belt guide ......................................... 71
Seat belt pretensioners ....................... 72
Seat heaters ............................................ 377
Seat position memory ............................ 65
Seat ventilators ...................................... 377
Seating capacity .................................... 237 Seats
Adjustment .............................................. 55
Adjustment precautions ................... 60
Child seats/child restraint system installation............................ 128
Cleaning ................................................ 407
Driver’s seat position memory ........ 61
Front passenger seat position memory ................................................. 65
Head restraint ......................................... 67
Properly sitting in the seat............... 104
Seat heaters .......................................... 377
Ventilated seats................................... 377
Service reminder indicators ............. 172
Shift lever Automatic transmission ................... 153
If the shift lever cannot be shifted from P..................................... 531
Manual transmission..........................160
Shift lever light ....................................... 359
Shift lock system..................................... 531
Shopping bag hooks ............................ 381
Side airbags ............................................. 106
Side marker lights Switch ..........................................................181S