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Mon January 27, 2014
Six Tips for Common Cold Weather Car Questions
With the arctic weather we've been getting, most of us are taking extra precautions to face the cold. But should we do the same for our cars?
The cold, combined with additional snow every few days, makes it not only irritating to drive in, but also a challenge to keep our cars ready to cope with the double whammy of extreme cold and icy roads.
Automotive contributor Mark Savage answers some of the most pressing winter car care queries:
Do I need snow tires?
While not as popular as they used to be, snow tires much not be a bad idea given this winter's weather, Savage says.
Snow tires have more "sipes," or small cuts in the tread of a tire, which provide the extra traction in wintry and icy conditions.
"That's basically the trick here, getting enough of the tire to get enough grip on the pavement so that you can either start quicker or stop quicker," Savage says. "(It's) fascinating and revealing how quickly you could stop and easily you could start with snow tires."
While they're recommended for when temperatures reach 45 degrees or less, which Savage says definitely applies this winter, many people don't want to spend the money. That's true especially for those living in urban areas that are well-plowed and salted. But Savage says rural drives may want to consider the option.
Do I need to warm my car up before driving it?
Before direct injection and better technology, you needed to warm your car to get oil to circulate around the engine before driving. But Savage says nowadays, 10 to 15 seconds is more than enough warming time to get the fluids going. Of course, many people opt to warm their cars for the practical purpose of not wanting to sit in a freezing cold car, though Savage adds this uses gas and adds more pollution to the air.
That said, Savage warns that cars and their breaks do need some time to warm up while you're driving. Go slowly and brake gradually for the first few minutes of driving.
Should I get a block heater, or will a garage protect my engine?
You don't hear much about block heaters for warming engines anymore, but you can still buy them from auto dealers and for relatively cheap after-market prices. Savage says they are a viable alternative for helping your engine and oil warm up faster in extreme cold, particularly if your car stays outside. But garages provide for enough protection to keep your car several degrees warmer than a car let outdoors.
Do I need to wash off all this salt?
Many people have concerns about what road salt and snow can do to their cars' paint. Savage says today's car paints are much better, thicker, more elastic and less brittle than those of the past. Additionally, most cars today are made with galvanized steel, which takes a long time to rust, or have aluminum hoods, which don't rust. Even older cars take several years to rust from winter wear-and-tear. Still, he says it's worth it to wash the salt off once a winter - just not during such extreme cold or your car could freeze shut.
What does the cold do to my tires?
As the air gets colder, your tire pressure can get low, which can mean worse gas mileage and worse traction. Savage recommends keeping an eye out on your tire pressure after cold snaps.
Isn't 4-wheel drive enough to drive in wintry weather?
Savage says 4-wheel drive is "mainly intended for mud and snow that's a couple inches deep." So drive carefully, even if your car is equipped.
"It doesn't give you a lot of extra traction on ice," he says. "You're in the same boat as the rest of us."
Lake Effect contributor Mark Savage is the Milwaukee Journal Sentinel’s auto writer and associate publisher for four magazines at Waukesha’s Kalmbach Publishing – American Snowmobiler, Classic Toy Trains, FineScale Modeler, and Scale Auto magazine.
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