While most of our clients are conscientious about maintaining their vehicles, many don’t realize their vehicles come with two different maintenance schedules—one for “severe service” and one for “regular service,” depending on how the vehicle is driven. (Check the fine print in your owner’s manual. They’re both in there!)

Despite your best intentions, if you’re following the wrong maintenance schedule, you’re doing your vehicle a disservice. Chances are, you’re looking at the regular service schedule when you should be looking at the severe one. While this isn’t as detrimental as neglecting maintenance altogether, you’re certainly not gaining all the benefits. Consider the difference between seeing your dentist every 6 months vs. every 12 months or your doctor every 3-5 years vs. every year.

At Star Auto Authority, we find that the vast majority of our clients should be following the severe service schedule. The Automotive Filter Council supports our recommendations, as does a recent AAA study. Only 6 percent of motorists polled by AAA believed they drove under severe conditions, when in reality, 62 percent met the severe service requirements.

While each manufacturer’s recommendations differ slightly, AAA identifies severe service driving as:

• Driving short trips of less than 5 miles in normal temperatures or less than 10 miles in freezing temperatures.
• Driving in hot weather in stop-and-go traffic.
• Driving at speeds of less than 50 mph for long distances.
• Driving on roads that are dusty or muddy or that have salt, sand or gravel spread on the surface.
• Towing a trailer, carrying a camper (on a pickup truck), or transporting items on a roof rack or in a car-top carrier.

Think about your typical week. Do you live a quarter mile from the tollway and enjoy a non-stop commute to work? Or do you pass through 4 miles of traffic lights just to access the highway and then crawl at 20 mph the rest of the way to work? In the Chicago area, we’d contend that most of our trips are on the severe service list because of traffic congestion and our often extreme temperatures.

“Manufacturers provide differing sets of recommendations for severe driving conditions because of the increased wear they put on vehicle components and fluids,” says Steve Benedict, director of AAA Tidewater Automotive Services. “With increased traffic congestion and longer commutes becoming more common, many motorists do not realize what they think of as normal driving is actually severe when it comes to wear and tear on their vehicle.”

Why is this so important? Maintenance schedules for severe driving conditions typically recommend having the vehicle’s fluids and filters changed on a more frequent basis, and more frequent inspections of some components.

In terms of your oil changes, moisture builds up in the engine oil from normal condensation. Short trips around Vernon Hills or driving when it’s really cold means that the engine doesn’t heat up enough for the moisture to evaporate. The water in the oil leads to oil sludge, which gums up your engine and doesn’t let the oil protect it as well. You need to change your oil more frequently to get the sludge out before it causes problems.

Towing, heavy loads and very hot Chicago summers means your engine and transmission will operate at higher temperatures and with more stress. The fluids will break down more quickly. Additives that clean and prevent corrosion will be depleted sooner. Dusty conditions, which may extend also to areas with high air pollution, mean that fluids will get dirty faster and that filters will plug up and won’t work right.

All of these things can lead to premature wear and repairs down the road. They’ll also hurt your fuel economy. The good news is that we’re watching out for you at Star Auto Authority. We take the time to ask about your driving habits and conditions, and we can customize your maintenance schedule to your needs. Plus, we inspect your vehicle with every visit, and that includes visually evaluating the condition of your fluids. If we see your coolant is brown or your transmission fluid is black before the recommended flushing interval, we’ll advise you of that. If you have any questions about your maintenance needs in between visits, don’t hesitate to contact us.

(Note: The AAA study was conducted as part of the 2008 AAA Car Care Month and included interviews with 841 U.S. adults, both AAA members and non-members, who currently own or lease a motor vehicle. Interviews were weighed by age, sex, geographic region and race to ensure reliable and accurate representation of the total population, 18 years of age and older.)

Posted by Jim

A new survey from Consumer Reports magazine shows that—hands down—consumers prefer independent auto repair shops over dealers. (We’ve always thought that, but we are admittedly biased.)

Nearly 350,000 consumers were surveyed, and among those whose cars needed repairs and maintenance, 75 percent were very satisfied with their independent auto repair shop. A mere 57 percent were very satisfied with their dealers. For maintenance alone, 84 percent of motorists surveyed were very satisfied with their independent shop compared to 77 percent at dealerships.

The highest-scoring dealerships were Lexus, Buick and Acura. On the other end of the scale, Volkswagen, Suzuki, Jeep and Nissan owners were far less satisfied with dealer service.

While I often disagree with the auto recommendations put forth by Consumer Reports, this is one survey I can certainly applaud. Subscribers to the magazine can access complete survey results in the June issue.