Subaru WRX (2021 year). Manual in english - page 29

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Calculating total and load ca-
pacities varying seating con-
figurations

Calculate the available load capa-
city as shown in the following
examples:

Example 1A

Vehicle capacity weight of the ve-
hicle is 900 lbs (408 kg), which is
indicated on the vehicle placard
with the statement “The combined
weight of occupants and cargo
should never exceed 900 lbs or
408 kg”.

For example, if the vehicle has one

occupant weighing 154 lbs (70 kg)
plus cargo weighing 662 lbs (300
kg).

Calculate the total weight.

Calculate the available load ca-

pacity by subtracting the total
weight from the vehicle capacity
weight of 900 lbs (408 kg).

The result of step 2 shows that a

further 84 lbs (38 kg) of cargo can
be carried.

Example 1B

For example, if a person weighing
176 lbs (80 kg) now enters the same
vehicle (bringing the number of
occupants to two), the calculations
are as follows.

Calculate the total weight.

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Calculate the available load ca-

pacity.

The total weight now exceeds

the capacity weight by 92 lbs (42
kg), so the cargo weight must be
reduced by 92 lbs (42 kg) or more.

Example 2A

CAUTION

Your vehicle is neither de-
signed nor intended to be
used for trailer towing. There-
fore, never tow a trailer with
your vehicle.

Vehicle capacity weight of the ve-
hicle is 800 lbs (363 kg), which is
indicated on the vehicle placard
with the statement “The combined
weight of occupants and cargo
should never exceed 363 kg or
800 lbs”.

For example, the vehicle has one
occupant weighing 165 lbs (75 kg)
plus cargo weighing 265 lbs (120
kg). In addition, the vehicle is fitted
with a trailer hitch weighing 22 lbs
(10 kg), to which is attached a trailer
weighing 1,764 lbs (800 kg). 10% of
the trailer weight is applied to the
trailer tongue (i.e. Tongue load =

176 lbs (80 kg)).

Calculate the total weight.

Calculate the available load ca-

pacity.

The result of step 2 shows that a

further 172 lbs (78 kg) of cargo can
be carried.

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Example 2B

CAUTION

Your vehicle is neither de-
signed nor intended to be
used for trailer towing. There-
fore, never tow a trailer with
your vehicle.

For example, if a person weighing
143 lbs (65 kg) and a child weighing
40 lbs (18 kg) now enter the same
vehicle (bringing the number of
occupants to three), and a child
restraint system weighing 11 lbs (5
kg) is installed in the vehicle for the

child to use, the calculations are as
follows:

Calculate the total weight.

Calculate the available load ca-

pacity.

The total weight now exceeds

the capacity weight by 22 lbs (10
kg), so the cargo weight must be

reduced by 22 lbs (10 kg) or more.

Determining compatibility of
tire and vehicle load capaci-
ties

The sum of four tires’ maximum
load ratings must exceed the max-
imum loaded vehicle weight
(“GVWR”). In addition, sum of the
maximum load ratings of two front
tires and of two rear tires must
exceed each axle’s maximum
loaded capacity (“GAWR”). Original
equipment tires are designed to
fulfill those conditions.
The maximum loaded vehicle
weight is referred to Gross Vehicle
Weight Rating (GVWR). And each
axle’s maximum loaded capacity is
referred to Gross Axle Weight Rat-
ing (GAWR). The GVWR and each
axle’s GAWR are shown on the
vehicle certification label affixed to
the driver’s door.
The GVWR and front and rear
GAWRs are determined by not only
the maximum load rating of tires but

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also loaded capacities of the vehi-
cle’s suspension, axles and other
parts of the body.
Therefore, this means that the
vehicle cannot necessarily be
loaded up to the tire’s maximum
load rating on the tire sidewall.

Adverse safety conse-
quences of overloading on
handling and stopping and on
tires

Overloading could affect vehicle
handling, stopping distance, and
vehicle and tire performance in the
following ways. This could lead to
an accident and possibly result in
severe personal injury.

Vehicle stability will deteriorate.

Heavy and/or high-mounted

loads could increase the risk of
rollover.

Stopping distance will increase.

Brakes could overheat and fail.

Suspension, bearings, axles and

other body parts could break or
experience accelerated wear that

will shorten vehicle life.

Tires could fail.

Tread separation could occur.

Tire could separate from its rim.

Steps for Determining Cor-
rect Load Limit

Locate the statement “The com-

bined weight of occupants and
cargo should never exceed XXX
kg or XXX lbs.” on your vehicle’s
placard.

Determine the combined weight

of the driver and passengers that
will be riding in your vehicle.

Subtract the combined weight of

the driver and passengers from
XXX kg or XXX lbs.

The resulting figure equals the

available amount of cargo and
luggage load capacity. For exam-
ple, if the “XXX” amount equals
1400 lbs. and there will be five 150
lb passengers in your vehicle, the
amount of available cargo and
luggage load capacity is 650 lbs.
(1400 − 750 (5

150) = 650 lbs.)

Determine the combined weight

of luggage and cargo being loaded
on the vehicle. That weight may not
safely exceed the available cargo
and luggage load capacity calcu-
lated in Step 4.

If your vehicle will be towing a

trailer, load from your trailer will be
transferred to your vehicle. Consult
this manual to determine how this
reduces the available cargo and
luggage load capacity of your ve-
hicle.

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Uniform tire quality grading
standards

This information indicates the rela-
tive performance of passenger car
tires in the area of treadwear,
traction, and temperature resis-
tance. This is to aid the consumer
in making an informed choice in the
purchase of tires.
Quality grades can be found where
applicable on the tire sidewall be-
tween tread shoulder and maximum
section width. For example:

TREADWEAR 200 TRACTION AA
TEMPERATURE A

The quality grades apply to new
pneumatic tires for use on passen-
ger cars. However, they do not
apply to deep tread, winter type
snow tires, space-saver or tempor-
ary use spare tires, tires with
nominal rim diameters of 12 inches
or less, or to some limited produc-
tion tires.

All passenger car tires must con-

form to Federal Safety Require-
ments in addition to these grades.

TREADWEAR

The treadwear grade is a compara-
tive rating based on the wear rate of
the tire when tested under con-
trolled conditions on a specified
government test course.
For example, a tire graded 150
would wear one and one-half (1-
1/2) times as well on the govern-
ment 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, 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 measured
under controlled conditions on spe-

cified government test surfaces of
asphalt and concrete. A tire marked
C may have poor traction perfor-
mance.

WARNING

The traction grade assigned to
this tire is based on straight-
ahead braking traction tests,
and does not include accelera-
tion, cornering, hydroplaning,
or peak traction characteris-
tics.

TEMPERATURE A, B, 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 con-
ditions on a specified indoor labora-
tory test wheel. Sustained high
temperature can cause the material
of the tire to degenerate and reduce
tire life, and excessive temperature
can lead to sudden tire failure. The

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grade C corresponds to a level of
performance which all passenger
car tires must meet under the
Federal Motor Vehicle Safety Stan-
dard No. 109. Grades B and A
represent higher levels of perfor-
mance on the laboratory test wheel
than the minimum required by law.

WARNING

The temperature grade for this
tire is established for a tire that
is properly inflated and not
overloaded. Excessive speed,
underinflation, or excessive
loading, either separately or
in combination, can cause
heat buildup and possible tire
failure.

Reporting safety defects
(U.S.A.)

If you believe that your vehicle has a
defect which could cause a crash or
could cause injury or death, you
should immediately inform the Na-
tional Highway Traffic Safety Ad-
ministration (NHTSA) in addition to
notifying Subaru of America, Inc.
If NHTSA receives similar com-
plaints, it may open an investiga-
tion, and if it finds that a safety
defect exists in a group of vehicles,
it may order a recall and remedy
campaign. However, NHTSA can-
not become involved in individual
problems between you, your dealer,
or Subaru of America, Inc. To
contact NHTSA, you may call the
Vehicle Safety Hotline toll-free at 1-
888-327-4236 (TTY: 1-800-424-
9153); go to http://www.safercar.
gov; or write to: Administrator,
NHTSA, 1200 New Jersey Avenue,
SE, West Building, Washington, DC
20590. You can also obtain other

information about motor vehicle
safety from http://www.safercar.
gov.

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How to contact Transport
Canada in order to report a
safety concern relating to the
vehicle (Canada)

Consumer information and Reporting safety defects/How to contact Transport Canada in order to report a safety concern relating to

the vehicle (Canada)

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GAS STATION REFERENCE

Fuel

STI

The engine is designed to operate at maximum performance
using

unleaded gasoline

with an octane rating of

93 AKI (98

RON) or higher

. If 93 AKI (98 RON) fuel is not readily available

in your area, unleaded gasoline with an octane rating of 91 AKI
(95 RON) may be used with no detriment to engine durability or
driveability. However, you may notice a slight decrease in
maximum engine performance while using 91 AKI (95 RON)
fuel. Use of 91 AKI (95 RON) fuel will not affect your warranty
coverage.

Except STI

Use

unleaded gasoline

with an octane rating of

91 AKI (95

RON) or higher

. If 91 AKI (95 RON) fuel is not readily available,

unleaded gasoline with an octane rating of 87 AKI (90 RON) may
be used.

Fuel octane rating

AKI

This octane rating is the average of the Research Octane and
Motor Octane numbers and is commonly referred to as the Anti
Knock Index (AKI).

RON

This octane rating is the Research Octane Number.

Fuel tank capacity

15.9 US gal (60 liters, 13.2 Imp gal)

Engine oil

Use only the following oils.

ILSAC GF-5, which can be identified with the ILSAC

certification mark (Starburst mark)

or API classification SN with the words “RESOURCE

CONSERVING” or SN PLUS with the words “RESOURCE
CONSERVING”

For the complete viscosity requirements, refer to “Engine oil”

12-4.

Engine oil capacity

STI

4.5 US qt (4.3 liters, 3.8 Imp qt)

Except STI

5.4 US qt (5.1 liters, 4.5 Imp qt)

The indicated oil quantity is only a guideline and is estimated
based on a case when the engine oil is changed with an oil filter.
Check the oil level using an oil level gauge after refilling the
engine with oil. For more details about maintenance and
service, refer to “Engine oil”

11-13.

Cold tire pressure

Refer to “Tires”

12-8.

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