2006 SUBARU OUTBACK spark plugs

11Maintenance and serviceMaintenance schedule ....................................... 11-3
Maintenance precautions .................................. 11-3 Before checking or servicing in the engine
compartment ........................................................ 11-4
When you do checking or servicing in the engine
compartment while the engine is running ......... 11-4
Engine hood ....................................................... 11-4
Engine compartment overview ......................... 11-6 2.5-liter non-turbo models ..................................... 11-6
2.5-liter turbo models ............................................. 11-7
3.0-liter models ....................................................... 11-8
Engine oil ............................................................ 11-9 Checking the oil level ............................................. 11-9
Changing the oil and oil filter ................................ 11-10
Recommended grade and viscosity ..................... 11-12
Recommended grade and viscosity under severe
driving conditions ................................................ 11-13
Cooling system .................................................. 11-13 Hose and connections ........................................... 11-14
Engine coolant ........................................................ 11-14
Air cleaner element ............................................ 11-17 Replacing the air cleaner element ......................... 11-17
Spark plugs ......................................................... 11-19
Recommended spark plugs ................................... 11-19
Drive belts ........................................................... 11-20
2.5-liter models ....................................................... 11-20
3.0-liter models ....................................................... 11-20
Manual transmission oil .................................... 11-20 Checking the oil level ............................................. 11-20
Recommended grade and viscosity ..................... 11-21
Automatic transmission flui d ............................ 11-22Checking the fluid level .......................................... 11-22
Recommended fluid ............................................... 11-23
Front differential gear oil (AT vehicles) ............ 11-23 Checking the oil level ............................................. 11-23
Recommended grade and viscosity ..................... 11-24
Rear differential gear oil .................................... 11-24 Checking the gear oil level .................................... 11-24
Recommended grade and viscosity ..................... 11-26
Power steering fluid ........................................... 11-27 Checking the fluid level .......................................... 11-27
Recommended fluid ............................................... 11-27
Brake fluid ........................................................... 11-28 Checking the fluid level .......................................... 11-28
Recommended brake fluid ..................................... 11-28
Clutch fluid (MT vehicles) .................................. 11-29 Checking the fluid level .......................................... 11-29
Recommended clutch fluid .................................... 11-29
Brake booster ..................................................... 11-30
Brake pedal ......................................................... 11-30 Checking the brake pedal free play ...................... 11-30
Checking the brake pedal reserve distance ......... 11-30
Clutch pedal (Man ual transmission
vehicles) ........................................................... 11-31
Checking the clutch function ................................ 11-31
Checking the clutch pedal free play ..................... 11-31

Maintenance and service
11 - 1 9remove the air cleaner element.
6. Clean the inside of the air cleaner cov-
er and case with a damp cloth and install
a new air cleaner element.
7. To install the air cleaner case cover, in-
sert the three projections on the air clean-
er case cover into the slits on the air clean-
er case and then snap the two clamps on
the air cleaner case cover. Spark plugs
It may be difficult to replace the spark
plugs. It is recommended that you have
the spark plugs replaced by your
SUBARU dealer.
The spark plugs should be replaced ac-
cording to the maintenance schedule in
the “Warranty and Maintenance Booklet”. „ Recommended spark plugs 2.5-liter non-turbo models:
FR5AP-11 (NGK)
2.5-liter turbo and 3.0-liter models:
ILFR6B (NGK)
B00115y When disconnecting the spark
plug cables, always grasp the
spark plug cap, not the cables.
y Make sure the cables are replaced
in the correct order.
B00027

Specifications
12-3
– CONTINUED –„ Engine
„ Electrical system Engine model EJ253
(2.5-liter, SOHC, non-turbo) EJ255
(2.5-liter, DOHC, turbo) EZ30D
(3.0-liter, DOHC, non-turbo)
Engine type Horizontally opposed, liquid cooled 4 cylinder,
4 stroke gasoline engine Horizontally opposed, liquid cooled 6 cylinder,
4 stroke gasoline engine
Displacement cu-in (cc) 150 (2,457) 183 (3,000)
Bore × Stroke in (mm) 3.92 × 3.11 (99.5 × 79.0) 3.51 × 3.15 (89.2 × 80.0)
Compression ratio 10.0 : 1 8.2 : 1 10.7 : 1
Firing order 1 – 3 – 2 – 4 1 – 6 – 3 – 2 – 5 – 4
Battery type and capacity (5HR) 2.5-liter models MT 55D23L (12V-48AH)
AT 75D23L (12V-52AH)
3.0-liter models 75D23L (12V-52AH)
Alternator 12V-110A
Spark plugs 2.5-liter non-turbo models FR5AP-11 (NGK)
2.5-liter turbo and 3.0-liter models ILFR6B (NGK)

14-6 Index
N
New vehicle break-in driving the first 1,000 miles
(1,600 km) ...................................................................... 8-2
O
Odometer .................................................................. 3-7, 3-11
Off road driving ................................................................... 8-6
Oil filter ........................................................................... 11-10
Oil level
Engine ......................................................................... 11-9
Front differential gear (AT vehicles) .......................... 11-23
Manual transmission ... .......................................... ..... 11-20
Rear differential ......................................................... 11-24
Oil pressure warning light ................................................. 3-18
Outside mirrors ................................................................. 3-41
Outside temperature indicator .......................................... 3-27
Overheating engine ........... ........................................... .... 9-12
P
Parking
Brake stroke .............................................................. 11-32
Light switch .................................................................. 3-33
Periodic inspection . ............................................................ 8-4
Power
Door locking switches .................................................... 2-6
Seat ............................................................................... 1-4
Steering fluid ............................................................. 11-27
Windows ...................................................................... 2-19
Precautions against vehicle modification ................ 1-24, 1-61
Preparing to drive ............................................................... 7-7
Printed antenna .................................................................. 5-2 R
Rear
Combination lights ..................................................... 11-51
Differential gear oil ..................................................... 11-24
Gate ............................................................................. 2-24
Seats .............................................................................. 1-7
Rear seat
Folding down (Station wagon) ... .................................... 1-8
Rear window
Defogger button ........................................................... 3-38
Wiper and washer switch ............................................. 3-37
Recommended
Automatic transmission fluid ... ................................... 11-23
Brake fluid .................................................................. 11-28
Clutch fluid ................................................................. 11-29
OIL grade and viscosity ...................... 11-12, 11-13, 11-21,
11-24, 11-26
Power steering fluid ................................................... 11-27
Spark plugs ................................................................ 11-19
Remote keyless entry system .............. ............................. .. 2-7
Replacement
Brake pad and lining .................................................. 11-31
Wiper blades ............. ......................... ............ ............ 11-41
Replacing
Air cleaner element ................. ................................... 11-17
Battery (remote keyless entry syst em) ........ .............. ..... 2-7
Lost transmitters (keyless entry system) ...................... 2-11
Replacing bulbs .............................................................. 11-48
Cargo area light ......................................................... 11-55
Dome light .................................................................. 11-53
Door step light ............................................................ 11-54
Front fog light ............................................................. 11-50

Index
14-7Front turn signal light ................................................. 11-50
Headlight ................................................................... 11-49
High mount stop light ................................................. 11-56
License plate light ...................................................... 11-53
Map light .................................................................... 11-54
Parking light ............................................................... 11-50
Rear combination light ............................................... 11-51
Trunk light .................................................................. 11-55
Rocking the vehicle .......................................................... 8-12
Roof rail and crossbar ...................................................... 8-14
S
Safety
Precautions when driving .......... ....................................... 4
Symbol .............................................................................. 2
Warnings .......................................................................... 2
Seat
Fabric ........................................................................... 10-5
Heater ............................................................................ 1-7
Seatbelt ................................................................................. 4
Maintenance ............. .............. ............ ........... .............. 1-21
Pretensioners .............................................................. 1-21
Safety tips .................................................................... 1-11
Warning light and chime .............................................. 1-13
Seatbelts .......................................................................... 1-11
Selector lever ............................ .............................. 7-12, 7-18
Position indicator .................... ..................................... 3-24
Shift lock release ..................................................... 7-16, 7-23
Snow tires ......................................................................... 8-10
Sounding a panic alarm .................................................... 2-10
Spark plugs .................................................................... 11-19
Specifications ................................................................... 12-2 Speedometer ............................................................. 3-6, 3-10
SRS
Curtain airbag .......... ....................................... ............. 1-53
Frontal airbag ............................................................... 1-43
Side airbag ............... ....................................... ............. 1-53
SRS airbag (Supplemental Restraint System
airbag) .............. .......................................... ............... 4, 1-38
SRS airbag system warning light .. ............ ........... ............. 3-16
Starting the engine ........ .................................................. .... 7-8
State emission testing (U.S. only) ....................................... 7-6
Steering wheel
Power ........................................................................... 7-25
Tilt ................................................................................ 3-43
Stopping the engine ............................................................ 7-9
Storage compartment ......................................................... 6-4
Sun shades ....................................................................... 2-27
Sun visors ........................................................................... 6-3
Supplemental Restraint System ai rbag (SRS) .................. 1-38
Synthetic leather upholstery ....... ......................... ............. 10-5
T
Tachometer ................................................................ 3-8, 3-12
Temperature gauge ........ .............. ............ ........... ...... 3-9, 3-13
Temperature warning light (AT OIL TEMP) ...................... 3-18
Temporary spare tire .......................................................... 9-2
Tie-down hooks ................................................................ 9-13
Tilt steering wheel ............................................................. 3-43
Tire
Chains .......................................................................... 8-11
Inspection ................................................................... 11-34
Pressures and wear ................................................... 11-35
Replacement .............................................................. 11-38