June 12th, 2009 by admin

Demystifying The Tire Sidewall Code
So, you need new tires for your car or truck, but how do you know what to buy? What do all those alphanumeric codes printed on the tire sidewalls mean, anyway? If you’re in the market for new tires, you may simply want to replace your worn tires with exactly the same tire it came with. But you MAY want to consider an upgrade. If you know how to read the tire sidewalls, chock full of valuable information, you’ve got an advantage over most people and are prepared to make an informed decision. So let’s get underway! Tire Size Markings (example: P215/65R15 89H) Broken down: P = Passenger Other designations are LT = Light Truck T = Temporary (spare tire) 215 is the width (in millimeters) of the tire from sidewall to sidewall. A wider tire has more grip but the bad news is that you lose fuel economy, hear more noise and the tires don’t work as well in the rain. 65 is the aspect ratio The aspect ratio is the ratio of sidewall height to tire width. With regards to aspect ratio, the larger the number, the taller the tire sidewall. Tall (60-75) is great for a quiet ride but causes howling in turns. Short (35-55) is better for handling–more for sports cars. R indicates Radial. This means it is constructed with a series of support belts sideways under the tread. Other designations include B for Belted Bias and D for Diagonal Bias The standard, and what you’ll see most often, is R. 15 is the wheel (or rim) diameter, in inches. 89 is the load index H is the speed rating Speed ratings indicate the top speed under ideal conditions. Higher-rated tires are usually made of softer rubber and will have shorter UTQG tread life. Here are a few of the more common speed ratings: R= 106, S=112, T=118, U=124, H=130, V=149, W=168, Y=186. Along with this speed rating, you have a load index which indicates the approximate weight the tire can carry. Some of the more common load weights are as follows: 85 = 1,135 pounds, 86 = 1,168 pounds, 87 = 1,201 pounds, 88 = 1,235 pounds. UTQG Ratings Passenger car tires are accompanied by a UTQG Rating (Uniform Tire Quality Grading, mandated by the Federal Government) which rates the tread life of tires by looking at tread wear, traction and temperature resistance. The UTQG Rating is usually found opposite the tire size markings and will be in three separate ratings: treadwear, traction and temperature. The treadware grade standard is 100. A grade of 200 means the tread would wear twice as well as a tire graded 100. Traction grades run from AA to C, with AA being the highest grade and C meaning the tire brakes poorly on both wet concrete and wet asphalt. Temperature grades rate the tire’s resistance to and ability to dispel heat. Those grades are A (resists heat well), B (not as good as A) and C (passes minimum safety standards.) Keep in mind that heavy loads, under-inflation of the tires, and high speeds can all affect the tire temperature. You should note that these tire grades rate tires measured under controlled conditions. Factors such as driving habits, road conditions, climate, etc., are not considerations and may affect the actual performance of your tire. DOT DOT (Department of Transportation) indicates the tire is in compliance with applicable DOT safety standards. Next to DOT is an identification or serial number–codes that designate where and when the tire was produced. You’ll also find other information on the sidewall such as the type and composition of the tire, the maximum cold inflation (PSI) and maximum load in pounds. So as you can see, tires carry a huge amount of information. But it’s really not all that complicated once you learn to read the code. Debbie Pettitt is webmaster for Everything Tires, your tire resource. For more information on tires, visit http://everythingtires.com
Source: www.ArticlePros.com

Study Finds Logger Truck Accidents Decline
Study Finds Logger Truck Accidents Decline A recent study conducted by the state of Washington found that the number of truck accidents involving log trucks has declined by 11 percent even as the number of accidents involving all commercial trucks increased by 15 percent over a two-year period. Commercial truck accidents are considered the most expensive and fatal vehicular accidents that can occur throughout the country. The ripple effects of a commercial truck accident can often be vast and devastating to victims, family members and friends. What are Commercial Trucks, Log Trucks? In the United States, commercial trucks, also commonly referred to as heavy trucks, are those vehicles used to transport cargo and weighing more than 26,001 pounds in which case a commercial truck driver’s license is also needed. Commercial trucks transport a number of goods and products across state lines and throughout the country including food supplies and logs and some are specifically designed for tasks such as mixing and moving concrete as well as transporting light trucks for military use. Researchers have reported that while the construction of commercial trucks continues to improve, the level of quality still remains well below the quality level of automobiles and it has been said that commercial trucks remain well below automobiles in quality due mainly to the fact that nearly 3/4 of all commercial trucks are custom built, causing inefficiencies in steamlining a commercial truck assembly line. However, a lengthy list of popular commercial truck manufacturers remains both worldwide and in America. The list of top manufacturers includes: * American LaFrance * Autocar Company USA * Crane Carrier Corporation * Chevrolet * Colet * Dodge * E-One * Freightliner * Ford * GMC * Hino * Isuzu * Kenworth * Mack Trucks * International * Nissan * Oshkosh * Ottawa Truck * Peterbilt * Pierce * Sterling Trucks * UD Nissan Diesel * Volvo Trucks * Western Star Logging trucks and log truck drivers are no different from commercial trucks or commercial truck drivers, however, the Washington study conducted by the Washington State University found that a small group of log truck drivers are often considered seasoned and experienced drivers of the dangerous profession, which may be attributing to the total decrease of log truck accidents. However, the study also noted that as these individuals begin to retire, not only will the logging industry suffer, but accidents may begin to increase instead of decrease. The study noted that, “rising costs, aging drivers and long hours of service” as well as “other factors that could affect safety and economic viability include the ongoing effects of deregulation, poor driver recruitment” could all become factors responsible for a potential increase of log truck accidents. Protecting Yourself from a Truck Accident Individuals who have been involved in a commercial truck accident are advised to seek medical assistance even if no signs or symptoms of an injury are present. Often, injuries sustained in a vehicular or commercial truck accident can remain unseen and may include internal bleeding or bruising, which could have fatal consequences on a victim if injuries are not immediately assessed and treated. In addition to consulting a medical professional and ensuring injuries are properly treated, it may also be advisable to contact an experienced commercial truck collision law firm. Receiving a free legal consultation on injuries derived from a truck accident can provide relief from stress or worry over medical bills or automotive debts associated with a commercial truck collision or a log truck wreck.Peter Kent is the best-selling author of 50 books and hundreds of articles for magazines and newspapers. He manages Legalview.com, a website hosting a variety of information on legal issues, including <a href="http://crash.legaivew.com">Truck Accidents</a>
Source: www.ArticlePros.com