The round black is often ignored even though he's the only part of the car that direct contact with the road and the car could be rolled to ensure a comfortable and safe. To make sure the tires are in the best condition, make sure to always check the air pressure, surface condition and tire rotation.
Checking tire pressure
The easiest way, simple and easy to memparjang old tires is to keep the tire pressure according to the standard. Figures it can be known from the owner's manual or the sticker behind the driver's door.
Examination performed on all wheels, including spare tire. At least once a month or before long trips. Check the tires in cool conditions or a maximum of 1.6 km road so far.
Air pressure will rise when hot tires. Tires less heat and wind will quickly erupted at risk. The only way to determine accurately the wind pressure, using a measuring instrument which is usually sold at the auto parts store. Visually very difficult to determine whether the tire pressure is less.
Checking the tire surface conditions
Once a month, along with checking tire pressure, check also the condition of the tire surface. Perhaps permukaaanya cracked, torn, holes, bumps or a glass / stone wedged the tire grooves.
Check your tires are too worn surface. This could be an indicator of inadequate air pressure, misalignment and the problems of the suspension system. Tire rut depth should also receive attention. Tire is considered worn out when the depth of recess is only 1 / 16 inch or 1.6 mm.
Tire rotation
Regular tire rotation create a uniform level of wear on each tire. Rotation is done every 10.000 km - 12.000 km. The process of rotation can also be integrated with other routine maintenance. Rotation patterns are usually in the show are also on the user guide or ask the workshop.
The recommended tire care only soap and water. Production number sold in the market is likely contain ingredients that damage the tire, although there is also functioning otherwise.
On the wall of tires, in addition to brands typically there is also a row of numbers and letters are confusing. Row when translated could give a clearer picture about the identity of tires.
For example: P215/65R15 89H
P = Passenger tire marks for passenger cars. for light trucks is usually denoted by LT.
215 = tire width in millimeters
65 = aspect ratio or the ratio of the width and height of the tire wall.
R = Radial, B for Belted bias and D for diagonal bias
15 = wheel diameter in inches.
89H = Service description, where 89 is the load index, describes the ability to receive a load of tires. H is the symbol of speed or maximum speed of the tires (not car).
Another is the speed symbol:
Q = 99 mph (158.4 km / h), R = 106 mph (170 km / h), S = 112 mph (180 km / h), T = 118 mph (188.8 km / h), U = 124 mph (198.4 km / h), H = 130 mph (208 km / h), V = 149 mph (238.4 km / h) Z = 149 mph.
Traction: shows the ability of the tire to stop at the surface wet. Scale of the AA (best) to C (poor)
Temperature: the ability to withstand the impact of tire heat. Scale A, the most good, bad C.
