Archive for January 2018

Regular Schedule or Severe Service Schedule at Matt Davis Auto?

Posted January 28, 2018 7:08 AM

Today's Matt Davis Auto article focuses on severe service maintenance. Many Garner drivers are not aware of them and yet there are also very vocal advocates in NC who think that severe service schedules apply to everyone. Somewhere between a complete lack of awareness and the dire blanket statements lies a reasonable approach to severe service maintenance at Matt Davis Auto.

To back up a little, vehicle owner's manuals have schedules for preventive maintenance: things like oil changes, transmission service and so on. They say you should change your oil after a certain distanced traveled or after so many months. Garner drivers understand this very well. What they may not know is that there are actually two service schedules: the regular schedule and the severe service schedule. The mileage and time intervals are lower on the severe service schedule.

Now when you hear 'severe service,' you may think it doesn't apply to you because you don't feel your driving conditions are severe or extreme – it's just normal everyday driving in the Garner area. So let's list some of the conditions that classify as severe so that you can make the judgment on your own driving.

Before we start the list, here's a point of contrast that definitely is not severe driving. Driving down your nearest NC interstate at the highway speed limit on a 75 degree F/24 degree C day loaded only with your passengers. This is an easy trip for your vehicle: your engine is loafing along at low RPMs, no heavy loads to pull and moderate Garner temperatures. Now let's look at some severe service driving conditions.

Most trips around Garner are less than four miles/six and a half kilometers. When your vehicle engine cools down, moisture condenses in the engine. This water in the oil doesn't get a chance to evaporate on short trips because the oil doesn't get hot enough. A lot of short trips in your vehicle means a lot of water build up. And water in the oil leads to the creation of sludge which can damage the engine. Changing the oil more frequently keeps sludge from building up. By contrast, highway driving warms the engine up and gets the water burned off.

Here's another example. Most trips around Garner are less than 10 miles/16 km and outside temperatures are below freezing. This is the same reasoning, but in very cold NC weather it takes even longer for the oil to get hot enough to evaporate the water, hence 10 miles/16 km as opposed to 4 miles/6.4 km.

Next, you drive in very hot NC weather. The hotter it is outside, the more cooling the engine, transmission, brake fluid and so on becomes. The environment in which the fluids reside is more hostile, and the fluids simply break down faster. Therefore, the lower change interval.

Another: driving at low speed most of the time. Every vehicle engine has what's called its power band. This is a range of RPMs in which it's most efficient. Low speed driving doesn't keep the engine in its power band so it's working harder. This is one of the reasons that ratings are worse in downtown than on the highway.

Stop and go driving in Garner is another severe service condition. You're always accelerating, which works the vehicle engine and transmission harder. Then you're stopping, which works the brake fluid harder, causing it to get very hot. Highway driving, on the other hand, requires far less horsepower to maintain its speed than getting a stationary vehicle from a stop light up to 25 mph/40 kph. A lot of this and you'll need to follow the severe service schedule.

Also on the list is operating your vehicle in dusty, polluted or muddy conditions. Obviously, your engine air filter and cabin air will get dirty faster and need to be changed more frequently as will your breather element. Some of this dust and dirt will make its way into your fluids. They will simple get dirty faster and won't protect the components as well as fresh fluids.

Finally, you're driving under severe conditions in Garner when you tow a trailer, regularly carry heavy loads or carry a car-top carrier. This is pretty obvious. You'll spend more time in lower gears so the engine and transmission work much harder and create more heat. Brakes will be more stressed stopping the heavier loads.

Sounds like most of us in Garner operate under severe driving conditions at least some of the time. How can Garner drivers know which schedule to follow?

Think of it as a spectrum with "always driving under severe conditions" on one end and "never driving under severe conditions" on the other end. Some will be at one extreme or the other, but most of us will fall somewhere in between.

Carefully think about your driving conditions and decide if you should do your preventive maintenance closer to the severe service recommendation or the regular recommendation. Of course, your Matt Davis Auto service advisor can help you with your decision.

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

Maintenance on My Mind

Posted January 8, 2018 9:26 AM

Ask any Garner man or woman if they've taken their vehicle in for preventive maintenance lately, and the answer may well be “no.” Surveys indicate that over 80% of vehicles on the road today are in need of some kind of repair or maintenance. Now, ask that same person why he hasn't taken his car in for care. The answer will probably be that he forgot or that he just didn't think about it. Most Garner residents seem to have a hard time remembering about scheduled maintenance for their vehicles.

Funny, because most of us in Garner have no trouble remembering to wash our clothes, mow our lawns or brush our teeth. It isn't that we can't remember to take our vehicles for service; it's a matter of making it a priority.

When it comes to our vehicles, Garner drivers like myself, need to be a little more maintenance-minded. The fact is, we can choose to do it, or we might find ourselves being compelled to do it.

For example, when we consistently forget to brush our teeth, a major consequence usually follows. The pain of that experience usually compels us to be more mindful of our teeth and take better care of them.

The same goes for our vehicles. If we ignore them long enough, a painful experience is sure to follow—painful for our pocketbooks, that is. People in Garner who have gone through that experience are usually more conscientious about proper car care.

So, if you're not a fan of the school of hard knocks, at least when it comes to vehicle maintenance, remind yourself to look after your car. Pay attention to the little oil change tag on your windshield. When it's time take your car in, do it. But don't just change the oil. Get a full-service oil change at Matt Davis Auto. Your technician will then check all of your fluids. He can advise you if any of them need to be changed or if any of them are low.

Low fluid levels can indicate leaks or a worn hose or seal, so they can check those for you as well. Other signs of wear are also immediately evident when you get a full-service oil change, such as a cracked serpentine belt or corroded battery cable. Your Matt Davis Auto technician will also check the vehicle manufacturer's service recommendations for your vehicle and advise you of any other routine service that is coming due.

It's like a one-stop shop for auto advice that will keep you on top of your vehicle's maintenance.

If there is more to be done than the budget allows, you can get a picture of what needs to be done. Then, create a plan with your Matt Davis Auto service advisor and budget for it during the coming months. It's a whole lot less painful than unexpected car repairs.

Vehicles are more reliable than they ever have been. They can take a lot of abuse and neglect. But they're also expensive and complicated machines. Garner drivers can't expect them to run forever without proper fluids and filters. Preventive maintenance at Matt Davis Auto in Garner will improve the reliability and life expectancy of your vehicle, as well as ensuring your safety on the road in NC.