Subaru Crosstrek Owners Manual: Tire size
Your vehicle comes equipped with P-Metric tire size. It is important to understand the sizing system in selecting the proper tire for your vehicles. Here is a brief review of the tire sizing system with a breakdown of its individual elements.
P Metric
With the P-Metric system, Section Width is measured in millimeters.
To convert millimeters into inches, divide by 25.4. The Aspect Ratio (Section Height divided by Section Width) helps provide more dimensional information about the tire size.
Example: 
(1) P = Certain tire type used on light duty vehicles such as passenger cars
(2) Section Width in millimeters
(3) Aspect Ratio (= section height 7 section width).
(4) R = Radial Construction
(5) Rim diameter in inches
Load and Speed Rating Descriptions
The load and speed rating descriptions will appear following the size designation.
They provide two important facts about the tire. First, the number designation is its load index. Second, the letter designation indicates the tire's speed rating.
Example: 
(6) Load Index: A numerical code which specifies the maximum load a tire can carry at the speed indicated by its speed symbol, at maximum inflation pressure.
For example, "90" means 1,323 lbs (600 kg), "89" means 1,278 lbs (580 kg).
WARNING
Load indices apply only to the tire, not to the vehicle. Putting a load rated tire on any vehicle does not mean the vehicle can be loaded up to the tire's rated load.
(7) Speed Rating: An alphabetical system describing a tire's capability to travel at established and predetermined speeds.
For example, "V" means 149 mph (240 km/h)
WARNING
Speed ratings apply only to the tire, not to the vehicle.
Putting a speed rated tire on any vehicle does not mean the vehicle can be operated at the tire's rated speed.
The speed rating is void if the tires are worn out, damaged, repaired, retreaded, or otherwise altered from their original condition. If tires are repaired, retreaded, or otherwise altered, they may not be suitable for original equipment tire designed loads and speeds.
Tire labeling
Many markings (e.g. Tire size, Tire
Identification Number or TIN) are
placed on the sidewall of a tire by
tire manufacturers. These markings
can provide you with useful information
on the tire. ...
Tire Identification Number (TIN)
Tire Identification Number (TIN) is
marked on the intended outboard
sidewall. The TIN is composed of
four groups. Here is a brief review
of the TIN with a breakdown of its
individual elements.
( ...
Other materials:
Intake manifold vacuum Inspection
MECHANICAL(H4DO) > Intake Manifold VacuumINSPECTION1. Turn the ignition switch to OFF.2. Warm up the engine.3. Install the vacuum gauge.(1) Remove the brake booster vacuum hose from the intake manifold.(2) Connect the vacuum gauge to the intake manifold.4. Keep the engine at idle speed and read t ...
Choosing a child restraint system
Choose a child restraint system that is
appropriate for the child's age and size
(weight and height) in order to provide the
child with proper protection. The child
restraint system should meet all applicable
requirements of Federal Motor Vehicle
Safety Standards for the United States
or ...
Glove box
Lock
Unlock
To open the glove box, pull the handle. To
close it, push the lid firmly upward.
To lock the glove box, insert the key and
turn it clockwise. To unlock the glove box,
insert the key and turn it counterclockwise.
For models with "keyless access with
push-button start s ...
