AUTONET TV

Archive for August 2019

Picking the Right Tires in Garner

Posted August 25, 2019 7:34 AM

Shopping for tires in Garner can be bewildering because there are many choices. Let's simplify. There are four main classifications of tires, each designed for different purposes.

First off, there are summer tires. Those who buy summer tires in Garner are looking for maximum summertime performance. The rubber is a little softer to help stick to the road on fast corners on NC roads. The tread has wide blocks at the shoulder to stiffen the tire in turns. The tread design can handle rain but really isn't set up for snow and ice.

Next comes winter tires. Garner people buy winter tires because they still like performance driving when it's cold and slippery on NC roads, so they need a tread design that'll really bite into ice and snow. The rubber compound is formulated to stay pliable when temperatures drop below 45 degrees F/7 degrees C so they get great traction even on dry roads. On the other end of the winter tire spectrum are tires designed to handle well in severe ice and snow conditions.

The third category is all-season tires. Most new cars in Garner showrooms come with all-season tires. This is a tire that is designed to be used all year round. The tread design and rubber compound is a compromise that won't give you the extreme capabilities of summer or winter tires; but if you're driving and weather conditions aren't at the extreme ends of the range, all-season tires might suit you just fine.

The last category is what you might have on your SUV or pickup. All-terrain or off-road tires are designed for both highway and off-road use – a tire that gets good traction in the dirt and on off-road obstacles, but still performs well on paved Garner roads.

Choosing the right tire is important for Garner car owners. Talk with your Matt Davis Auto tire professional about your driving requirements and receive valuable guidance on tires that will meet your needs.

Give us a call.

Matt Davis Auto
875 US Highway 70 W
Garner, NC 27529
(919) 600-5125
http://www.mattdavisauto.com



Winter Tires

Posted August 18, 2019 8:17 AM

What type of technology do you use? Do you prefer an 8-track tape or an iPod? When it comes to winter tires, much of Garner driver's perception dates back to when 8-track was the best way to listen to the Bee Gees.

Twenty years ago in NC, winter tires differed from highway tires only in their tread design. NC drivers called them snow tires back then, and they had big, knobby lugs that were designed to give good traction in deep snow. They had the same rubber compound as regular tires and they weren't very good on ice, packed snow or wet NC roads. They were not even very good on dry roads. They really helped in deep or loose snow, but they did a poor job the rest of the time. They were loud and rode hard. People couldn't wait to get them off in the spring.

Then all-season tires started to appear in Garner tire shops. All-season tires are really a compromise between summer and winter performance. They have acceptable hot weather ride and tread life and can get NC drivers through mild winter road conditions OK. But there are some really good reasons to consider winter tires.

Modern winter tires do a terrific job for NC driving in a wide range of winter conditions. First of all, below 45°F/7°C, regular tires become hard and inflexible. That means they don't provide the road grip NC vehicles need. Even if you don't live somewhere in NC with a lot of snow, but it still gets below 45°F/7°C in the winter, you will be safer with winter tires.

In addition, they are specifically designed to more effectively move snow and water. That's the key to traction on ice-packed snow and wet Garner area roads. They use a micropore compound that allows the tire to bite into ice and snow. They also use wider grooves that run around the circumference of the tread to expel snow from the tire better. The lugs and grooves on winter tires have a special shape that throws the packed snow out of the tread as the tire turns. The tread is then open when it comes back in contact with the road and can provide good traction for NC drivers.

Winter tires also have a lot of sipes. Sipes are thin slits in the tread. The edge of the sipes grab ice and packed snow to provide tons of traction and to expel water and slush out of the tread. Winter tires have a rounder casing to cut into the snow's surface. The treads on regular summer tires can actually get packed with snow instead and become very slick. Winter tires offer 25% to 50% more traction for NC drivers than all-season tires. And when it comes to stopping power, all-season tires take 42% longer to stop than winter tires. Sometimes that's the difference between getting home safely and spending the night in a snow bank.

Now back when the 8-track was king, NC drivers just put snow tires on the drive wheels. That worked out OK because the rubber compound was essentially the same. Now, winter tires provide so much more traction than all-season or summer tires, that there's a huge difference between the traction at the front and rear ends of the car if you only put winter tires on the drive wheels.

For example: if you take a corner on an icy road and the rear end starts to slide out, essentially the rear is trying to pass the front because it's going faster. If you have high traction winter tires only on the front, they are going to be much more effective at transferring cornering grip and stopping power to the front wheels. This will actually cause the rear end to whip out even more.

That's why tire manufactures instruct their dealers that they must install winter tires on the rear wheels as well whenever they put winter tires on the front end of any vehicle. It's a major safety concern. It's strongly recommended that winter tires be installed on all four wheels on rear wheel drive vehicles as well. The front tires do most of the steering and braking work - it only makes sense that you provide the front end with the best traction you can.

Garner drivers often assume that if they have four-wheel drive or all-wheel drive they don't need winter tires on all four wheels. Would you intentionally disconnect the four-wheel drive in poor road conditions? Of course you wouldn't, but that's essentially what you do if you only put winter tires on one end. It only makes sense to have the same level of traction and control at all four corners.

The province of Quebec in Canada has issued a law requiring all passenger vehicles, taxis and rental cars with Quebec license plates to install a full set of four winter tires between November 15th and April 1. It's that important.

Many modern cars have traction control and anti-lock brakes so NC drivers may think that they don't need winter tires. But you need traction to accelerate, steer and stop. The tires provide the traction so that the traction control and anti-lock brakes have something to work with.

Look for tires with the symbol of a mountain with a snowflake in it. This means the tire complies with the severe snow standard. All-season tires will have an M&S, for mud and snow, on the sidewall.

So when the Garner temperatures drop below 45°F/7°C, be sure you have a set of four winter tires for maximum performance on snow, packed snow, ice, plus wet and dry roads. Your friendly and knowledgeable Matt Davis Auto tire professional can help you find the right winter tire for your vehicle and driving needs.

Matt Davis Auto
875 US Highway 70 W
Garner, NC 27529
(919) 600-5125
http://www.mattdavisauto.com



Battery Replacement at Matt Davis Auto in Garner

Posted August 11, 2019 2:18 AM

Hello, welcome to Matt Davis Auto. Today's focus is batteries. It seems like everything in Garner runs on batteries. Of course, the batteries we're most concerned with here at Matt Davis Auto are those in our customer's vehicles. Just like the batteries in our smoke detectors or TV remote, drive they wear out and need to be replaced . This can be thought of as the power output used to start a cold vehicle engine. The number of cold cranking amps you need depends on your vehicle and where you live in NC, specifically how cold it is. (Many Garner drivers have first-hand experience trying to start their car on a cold winter morning.) The two factors are that the colder your vehicle's engine is, the more power it takes to turn the engine over to get it started. It has all that cold, sluggish oil to contend with.

The other factor is that the chemical reaction in the battery that creates electrical energy is less efficient when the temperature dips. Let's say it's 80 degrees Fahrenheit (27 degrees C) in Garner. At that temperature, 100% of the battery's power is available. At freezing, only 65% of battery power is available, but it requires 155% as much power to start the engine as it did at 80 degrees F (27 degrees C).

As you can see, the colder it gets, more power is needed, but the available power drops.

So if you live where it's cold in NC, you need a battery with more cold cranking amps than you do where it's moderate or hot. The battery that originally came with your vehicle was based on averages. At Matt Davis Auto, we like to remind Garner drivers that they should always get at least as many cold cranking amps as their vehicle manufacturer recommends but may want to upgrade if they live where it gets real cold.

Matt Davis Auto
875 US Highway 70 W
Garner, NC 27529
(919) 600-5125
http://www.mattdavisauto.com

 



Engine Hydration for Garner Drivers: Role of Your Water Pump

Posted August 4, 2019 8:09 AM

The cooling system in an engine has five components: the radiator, the radiator cap, the hoses, the thermostat and the water pump. The water is literally the heart of the system. Just as your own heart keeps your blood circulating through your body, the water pump keeps coolant circulating through your engine.

The water pump is driven by a belt, chain or gear and only operates while the engine is running. It has a limited life span and sooner or later will have to be replaced. You can check your owner's manual to find out how long your water pump should last. Some can fail at only 40,000 miles (64,000 kilometers), but almost all of them fail by 100,000 miles (160,000 kilometers).

Water pumps don't gradually wear out; they fail. In other words, they're either working or they're not. A failed water pump has to be replaced.

Water pumps can fail in two ways: they can spring a leak or their bearings fail. Leaks can come from a cracked pump but usually develop at the gasket where the pump attaches to the engine.

If you hear a low-pitched grinding sound coming from the water pump, it's time for a new one. If you see coolant leaking in the area near the pump, it needs to be replaced. Also, coolant on the driveway could indicate water pump failure. Many water pumps aren't visible because they're under a plastic cover, so you may have to take your vehicle to Matt Davis Auto to know if the water pump has failed. If your water pump is run by the timing belt, then it should be replaced when you replace the belt. Most timing belts need to be replaced at around 60,000 to 90,000 miles (100,000 to 150,000 kilometers). The labor for replacing a timing belt is about 90% the same for replacing a water pump, so it's cost-effective to take care of them both at the same time. Also, if your water pump develops a leak (if it's powered by the timing belt), you have to replace the timing belt as well since contamination by coolant fluid damages the belt. It just makes sense for Garner residents to replace both of these parts whenever either one needs it.

Replacing a water pump at Matt Davis Auto is a vehicle care issue that almost all of us Garner residents face eventually. They don't last forever. On the other hand, we can extend the life of most of the components of our vehicle through preventive maintenance. Just as exercise and diet keep our heart healthy, regular check-ups and fluid changes will keep our vehicles healthy. Talk to your friendly and knowledgeable Matt Davis Auto service advisor.

Matt Davis Auto
875 US Highway 70 W
Garner, NC 27529
(919) 600-5125
http://www.mattdavisauto.com



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  • Matt Davis Auto - Garner
    875 US Highway 70 W
    Garner, NC 27529
919-398-6171
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    Clayton, NC 27520
919-398-6171