TIRE LABELING
Federal law requires tire manufacturers to
place standardized information on the
sidewall of all tires. This information iden-
tifies and describes the fundamental
characteristics of the tire and also pro-
vides the tire identification number (TIN)
for safety standard certification. The TIN
can be used to identify the tire in case of a
recall.
s1Tire size (example: P215/65R15 95H)
1. P: The9P9indicates the tire is de-
signed for passenger vehicles.
2. Three-digit number: This number
gives the width in millimeters of the
tire from sidewall edge to sidewall
edge.
3. Two-digit number: This number,
known as the aspect ratio, gives the
tire’s ratio of height to width.
4. R: The9R9stands for radial.5. Two-digit number: This number is the
wheel or rim diameter in inches.
6. Two- or three-digit number: This
number is the tire’s load index. It is a
measurement of how much weight
each tire can support. You may not
find this information on all tires be-
cause it is not required by law.
7. Tire speed rating. You should not
drive the vehicle faster than the tire
speed rating.
WDI0394WDI0395
8-42Maintenance and do-it-yourself
ZREVIEW COPYÐ2006 Sentra(b15)
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ENGINE
ModelQG18DE QR25DE
TypeGasoline, 4-cycle, DOHC Gasoline, 4-cycle, DOHC
Cylinder arrangement4-cylinder in-line 4-cylinder in-line
Bore x Stroke in (mm) 3.150 x 3.465 (80. x 88.0) 3.504 x 3.937 (89.0 x 100.0)
Displacement cu in (cm
3) 107.94 (1769) 151.8 (2488)
Firing order1–3–4–2 1–3–4–2
Idle speed rpm
Ignition timing degree (B.T.D.C.) at idle speed
degree/rpm See the “Emission Control Information label” on the underside of the
hood.
CO percentage at idle speed
[No air]%
Platinum-tipped type Platinum-tipped type
Spark plug Hot PLFR4A-11 *1 PLFR4A-11 *1
Standard PLFR5A-11 *1 PLFR5A-11 *1
Cold PLFR6A-11 *1 PLFR6A-11 *1
Camshaft operationTiming chain Timing chain
Spark plug gap (Nominal) in (mm) 0.043 (1.1) 0.043 (1.1)
Generator belt size0.843 x 32.28 (21.4 x 820)
Width x Length in (mm) 0.843 x 43.7 (21.4 x 1110) *2 0.843 x 88.46 (21.4 x 2247)
*1: Always check with the Parts Department at a NISSAN dealer for the latest parts information.
*2: With air conditioner
The spark ignition system of this vehicle meets all requirements of the Canadian Interference-Causing Equipment Regulations.
SPECIFICATIONS
Technical and consumer information9-7
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WHEELS AND TIRES
Wheels
DimensionOffset
in (mm)
Road wheel
15” steel w/bolt-on cover 15 x 6JJ
15” aluminum alloy 15 x 6JJ 1.77 (45)
16” aluminum alloy 16 x 6JJ 1.77 (45)
17” aluminum alloy 17 x 7JJ 1.85 (47)
Conventional tire size
P195/60R/15 15 x 6JJ
P195/55R/16 16 x 6JJ
P215/45ZR17 17 x 7JJ
Spare tire size
T115/70*14 14 x 4T
T125/70*15 15 x 4T
T135/90*15 15 x 4T
T135/70*17 —
*: “R” or “D” depending on tire manufacturer
DIMENSIONS AND WEIGHTS
SENTRA
Overall length in (mm) 177.5(4508)
Overall width in (mm) 67.3(1710)
Overall height in (mm) 55.5(1410)
Front tread 15/16 inch in (mm) 57.9(1470)
17 inch in (mm) 57.7(1466)
Rear tread 15/16 inch in (mm) 57.3(1455)
17 inch in (mm) 56.9(1446)
Wheelbase in (mm) 99.8(2535)
Gross vehicle weight rating lb (kg) See the “F.M.V.
S.S. certification
label” on the cen-
ter pillar between
the driver’s side
front and rear
doors. Gross axle weight rating
Front lb (kg)
Rear lb (kg)
9-8Technical and consumer information
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cAfter towing 500 miles (805 km) , start and
idle the engine with the transmission in Neu-
tral for two minutes. Failure to idle the engine
after every 500 miles (805 km) of towing
may cause damage to internal transmission
parts.DOT (Department of Transportation) Quality
Grades: All passenger car tires must conform to
federal safety requirements 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 controlled conditions on a specified gov-
ernment test course. For example, a tire graded
150 would wear one and one-half (1 1/2) times
as well on the government course as a tire graded
100. The relative performance of tires depends
upon the actual conditions of their use, however,
and may depart significantly from the norm due to
variations in driving habits, service practices and
differences in road characteristics and climate.
Traction AA, A, B and C
The traction grades, from highest to lowest, are
AA, A, B, and C. Those grades represent the
tire’s ability to stop on wet pavement as mea-
sured under controlled conditions on specified
government test surfaces of asphalt and con-
crete. A tire marked C may have poor traction
performance.WARNING
The traction grade assigned to this tire is
based on straight-ahead braking traction
tests, and does not include acceleration,
cornering, hydroplaning, or peak traction
characteristics.
Temperature A, B and C
The temperature grades are A (the highest) , B,
and C, representing the tire’s resistance to the
generation of heat, and its ability to dissipate heat
when tested under controlled conditions on a
specified indoor laboratory test wheel. Sustained
high temperature can cause the material of the
tire to degenerate and reduce tire life, and exces-
sive temperature can lead to sudden tire failure.
The grade C corresponds to a level of perfor-
mance which all passenger car tires must meet
under the Federal Motor Safety Standard No.
109. Grades B and A represent higher levels of
performance on the laboratory test wheel than
the minimum required by law.
UNIFORM TIRE QUALITY GRADING
Technical and consumer information9-21
ZREVIEW COPYÐ2006 Sentra(b15)
Owners ManualÐUSA_English(nna)
09/01/05Ðdebbie
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