AUTONET TV

'Tis the Season (Tires)

We all know about winter tires.  But did you know there is such a thing as summer tires?

Most people have all-season tires on their vehicles.  They work pretty well in a variety of weather conditions.  But if you want better handling and performance, you might consider switching to summer tires.  Here are a few things you should know about them.

Summer tires are good for high-performance vehicles like sports cars and luxury SUVs, but they don't have to be limited to those. They have a different tread pattern than all-season tires, with generally shallower grooves and more rubber that contacts the road.  The rubber is made of a stickier compound good for taking corners at higher speeds.  Plus it is engineered so it stays firmer the hotter the temperature gets. 

Here's a bonus.  That design also works well in warm, wet weather.  It makes sense, since more the more rubber that's touching the concrete or asphalt when it's slippery out, the better the traction. 

There are some things to be aware of with summer tires.  They often have asymmetrical or unidirectional tread patterns.  That sometimes limits the way these tires can be rotated on a vehicle.  Another thing to remember is it is NOT a good idea to use summer tires in any wintery conditions.  They lose traction as the temperature heads toward the freezing range and below since that rubber that's designed to stay firm at warm temperatures gets hard as a rock when they freeze.

But in warmer weather, summer tires can increase your braking and cornering capabilities.  Plus you'll notice more grip at faster speeds and higher temperatures than all-season tires.  So think about discussing summer tires with your service advisor to see if they'd be a good fit for the type of driving you do.  He or she will offer you some choices that are designed to meet your vehicle's specs.

A.G. Automotive & Diagnosis
19735 Sherman Way Suite 2
Winnetka, CA 91306
(818) 438-9608
http://www.agautodiagnosis.com

Cruisin' on Down Main Street

When automakers first came out with cruise control, it was a real luxury item.  The older cruise controls used a mechanical vacuum system but it worked.  Well, some of the time. 

Now days, cruise control is all electronic, thanks to computers.  It's reliable and a real convenience on long trips.  Cruise control is offered on most vehicles and standard on a lot of them.  Because it's electronic, when it breaks, it's usually some electronic component.  Your vehicle's cruise can be the victim of a blown fuse. Or your vehicle's speed sensor, which—not surprisingly—measures your vehicle's speed, can also stop working.  And that will cause your cruise to stop cruising. 

Vehicles with cruise control also have a built-in feature that, when the brakes are applied, turns off the cruise.  With electronic cruise control, that happens thanks to the brake pedal switch, and if a problem develops in that switch, the cruise might not work.

The newest cruise control is called "adaptive." What that means is that it will maintain your vehicle's speed as well as the distance between you and the vehicle ahead of you.  That means if a car ahead of you slows down, your vehicle will slow down to the same speed and even stop if the car ahead stops.  Pretty cool, right? As you can imagine, adaptive cruise control is more sophisticated and has many more components than standard cruise.  The systems vary from manufacturer to manufacturer, but they use on-board radar units and cameras to calculate what your vehicle should do to maintain a safe distance and speed. 

Finally, there are still some of the older style cruise controls out on the roads.  They'll stop working when the vacuum actuator develops a problem, a vacuum hose starts leaking or breaks or the cable between the actuator and the throttle kinks, breaks, seizes up or becomes detached. 

If your cruise control isn't working, your service repair facility will be able to determine what kind your vehicle has and what it will take to fix it.  Good news for the cruise blues.