AUTONET TV

Go Big or Go Home: Upsize Your Wheels at TJ's Auto Center Inc.

A lot of us Rockford drivers like our vehicles to reflect our personalities. We're picky about color and body style. We'll customize anything from floor mats to window tints to license plates. One popular way for Illinois motorists to customize a vehicle is to get new wheels.

Wheels come in thousands of designs. Custom wheels can add personality, style or sass to a vehicle. Many of these customizations involve getting a bigger wheel.

Fifteen or 16-inch wheels used to be the factory standard, but today, because a lot of Rockford drivers like the look of larger wheels, many vehicles are available with 17 or 18-inch wheels. Optional wheel packages of 20 inches or more are also available in Rockford.

If you want to upsize the wheels on your current vehicle, however, you should know it's not a do-it-yourself project. There are factors involved in ensuring your wheel change doesn't jeopardize the safety of your vehicle.

First of all, you need to understand rolling diameter. The rolling diameter is the overall height of a tire. If you increase the rolling diameter of your tires when you upsize your wheels, you may have to modify your suspension to make sure the larger tires fit in the space and don't rub in turns or over bumps. If that's more work than you're willing to do or pay for, then you need to maintain rolling diameter when you change your wheels.

It's not as hard as it sounds. Imagine a doughnut. That doughnut represents rolling diameter, so you can't make the doughnut bigger. However, you can increase the size of the doughnut hole. That gives you a bigger wheel. Tires with reduced sidewall on larger wheels will preserve your rolling diameter.

Rolling diameter is important because your wheels and tires still need to fit inside the wheel well. Also, your speedometer, odometer and anti-lock brakes are all programmed to work with a specific rolling diameter. You'll throw off the readings on your speedometer and odometer if you change your rolling diameter. And for your anti-lock brakes to work properly, your rolling diameter has to be within 3% of factory recommendations. While some Rockford drivers who upsize may not be concerned about meter readings, throwing off the brake system is a serious safety hazard.

Further, many vehicles in Rockford are now equipped with electronically controlled suspensions. Changing the rolling diameter will negatively affect this system as well, which can lead to a less smooth ride and lower handling performance as well as safety concerns.

Your friendly and knowledgeable TJ's Auto Center Inc. tire professional may be able to reprogram your vehicle's computer to adjust for a larger (or smaller) rolling diameter.

So to maintain rolling diameter, you'll need tires with a shorter sidewall. These tires will be designed to give the sidewalls the strength they need to maintain ride quality. Consider that doughnut again. As the wheel (the doughnut hole) gets bigger, the sidewall of the tire (the width of remaining doughnut) gets shorter. That means the tire holds less air. The sidewalls have to be made stiffer to compensate for the decreased air capacity.

To improve their strength, the shorter tires will also be slightly wider than your previous tires. But this means you'll have a larger contact patch, or, in other words, a larger area of tire making contact with the road. This can actually increase your handling performance and decrease braking distances. Many Illinois auto buffs customize their wheels just for this reason—they want the improved performance rather than looks or style. If you drive a truck or an SUV around Rockford, you might be interested in the extra control an upsized wheel can provide.

Now, that larger contact patch still has to fit inside your wheel well without rubbing when cornering or when bouncing over bumps or potholes on Rockford roads. This is termed fitment, and you may need a few adjustments so your new wheels will fit properly. You may need spacers so that your brakes will fit inside the new wheels, as well.

TJ's Auto Center Inc. tire professionals are experts at mounting, adjusting and customizing wheels. They can give you a lot of good auto advice about wheels and tires and how they affect driving performance and car care. They can help you select wheels and tires that will suit your driving needs and habits.

For example, if you drive off-road around Rockford, you should consider a higher profile tire. This type of tire will protect your rims from damage while you're bouncing over rocks. Or, if you tow a trailer or haul heavy loads around Illinois, you'll want a tire with a load rating equal to your demands. Your friendly and knowledgeable TJ's Auto Center Inc. tire professional can help you with these types of concerns.

Once you've got your new wheels, have your service advisor at TJ's Auto Center Inc. see if you need an alignment. You don't want those new wheels and your higher performance compromised by poor alignment. Get the most out of your investment by getting the work done right at TJ's Auto Center Inc. in Rockford.

Last but not least, remember tire pressure. With larger wheels, your new tires will hold less air and they'll need slightly higher pressure. You'll need to stay on top of preventive maintenance and keep them properly inflated. Be sure to check their pressure at least once a week. If you don't keep your tires at their correct pressure, they will wear out really fast. It will also affect your braking and handling performance.

So smile and show off your vehicle around Illinois. Make it all yours. Bumper stickers, vanity license plates, custom wheels — strut your stuff!

TJ's Auto Center Inc.
3427 E. State St.
Rockford, Illinois 61108
815-399-2886

It?s About Time: Following Service Intervals at TJ's Auto Center

There are a lot of things in life that Rockford residents have to do on a regular basis. We wash dishes every day, do our laundry and mow our lawns every week, and pay the bills every month. We should go to our Rockford dentist twice a year and see our doctor for a check-up once a year. When we don’t stay on schedule with these routines, it can lead to embarrassing, painful or expensive consequences.

Scheduled maintenance is also part of good car care. Rockford drivers should take their sedans in regularly for a good check-up. But many Rockford, IL folks struggle to remember, or actually even ignore, this auto advice. When it comes to our cars, we’re more likely to listen to “If it ain’t broke, don’t fix it” than “An ounce of prevention is worth a pound of cure.” Yet it is the second adage that is the more applicable one.

Regular brushing treatments prevent cavities. Filling a cavity prevents a more painful and more expensive root canal. In the same way, replacing coolant/antifreeze, for example, vehicle can prevent cooling system leaks. Repairing leaks can prevent engine failure. So why do we procrastinate?

One reason might be that “ignorance is bliss.” We can see dirty dishes on the counter and how long our grass is getting; we can smell how dirty our clothes are; but we don’t notice how dirty our transmission fluid is getting. However, trouble in our sedans is like trouble in our bodies—ignorance is not bliss. High blood pressure can lead to heart damage, and inadequate coolant can lead to engine damage. However, we can’t know about either one unless we take the time for a diagnostic check-up at TJ's Auto Center in Rockford.

Another reason us Rockford drivers put off scheduled maintenance for our vehicles may be that we are simply intimidated by automotive care. After all, we understand how to take care of clothing, dishes, lawns, etc. Most of us have a basic working knowledge of our bodies and feel qualified to explain how we feel. But our vehicles? What exactly does routine, preventive maintenance involve? Most Rockford auto owners don’t know.

Of course, our sedans come with owner’s manuals that do a good job of explaining what routine maintenance is and how often our vehicles need it. But how many Rockford auto owners actually read them?

The good news is that all Rockford drivers have to do is remember to take our vehicles to a reputable, service center like TJ's Auto Center in Rockford. Like a good doctor, your Friendly and professional TJ's Auto Center tech will be able to tell you what maintenance and service your car needs and when. The service center can track your car’s maintenance records—just as a doctor maintains your health records—so that your vehicle is getting the service it needs in a timely manner.

Here are some guidelines to help Rockford auto owners understand the basics of preventive maintenance: Fluids. If it’s a liquid, it has to be replaced regularly. Your owner’s manual will tell you how often. Liquids include oil, transmission fluid, coolant, power steering fluid, brake fluid and differential fluid. There may be others. Check with your owner’s manual or your service center for specifics on your vehicle.

Tires. They need routine, scheduled care to wear well. Primarily, they need air. But they also need to be rotated, balanced and aligned.

Brakes. Brakes and shock absorbers wear out. There’s no way to avoid it. Worn parts need to be replaced.

Fuel. Obviously your sedan needs gas on a regular basis. But the fuel system also needs periodic maintenance. Air filters and fuel filters get dirty and need to be replaced. The fuel system needs to be kept clean.

These are the basics of car maintenance. Of course, there are other parts of your car that need to be inspected regularly, such as the battery, exhaust system, belts, etc. These parts have longer life cycles than your fluids, tires, brakes and filters, and so don’t need to be replaced as often.

If you are taking your sedan in for the basics, then your Rockford service center will let you know when it is time for an inspection of these other things. Or they may notice a problem when doing routine maintenance and let you know. Either way, you’ll get a heads-up when your vehicle needs more attention.

If you’re not convinced yet that your sedan needs regular service, consider this: not doing so will cost you in decreased gas mileage, lower performance and compromised safety. These could lead to expensive repair bills and costly accidents.

Just like a good dental check-up, a good auto check-up at TJ's Auto Center in Rockford can save you from experiencing embarrassing, costly and painful situations.