Why You Need to Keep Your Car's Gas Tank Full in Cold Weather

iStock.com/Chalabala
iStock.com/Chalabala

Schools, trains, and the U.S. Postal Service have shut down this week as a polar vortex brings negative double-digit temperatures to the Midwest. Even if residents won't be doing much traveling as long as the dangerous weather persists, they'd benefit from keeping a full tank of gas in their cars: According to the Detroit Free Press, it's an easy way to prevent fuel lines from freezing.

One common reason cars struggle to start in cold weather is blocked-up fuel lines. These tubes are thin, and if there's any moisture in them when temperatures drop to extreme levels, they can freeze, causing blockages that prevent fuel from flowing.

Gasoline, on the other hand, doesn't freeze as easily. It maintains its liquid state in subzero temperatures, like those currently hitting parts of the U.S., so when a gas tank is full, those fuel lines are better equipped to handle to the cold.

If you filled up your tank before the recent cold snap and your car still won't start, it may have something to do with your antifreeze levels. Your car's radiator needs water to work properly, and antifreeze is what keeps the water liquid when temperatures dip below 32°F.

Of course, if temperatures have already dropped to dangerous levels in your area, it's not worth it to drive to the gas station to refuel or run out to stock up on antifreeze. Instead, keep these car maintenance tips in mind for the next time an arctic blast rolls in to town. And when it is safe enough to drive again, resist heating up your engine in the driveway: Letting your car idle in the cold can actually shorten the engine's lifespan.

[h/t Detroit Free Press]

Denver's Temperature Dropped a Record 64 Degrees In 24 Hours

Leonid Ikan/iStock via Getty Images
Leonid Ikan/iStock via Getty Images

One sure sign summer is over: On Wednesday, residents of Denver, Colorado were experiencing a comfortable 82-degree day. Just before midnight, the temperature dropped to 29 degrees. Between Wednesday and Thursday afternoon, the Denver airport recorded a differential of 79 degrees down to 24 degrees. At one point on Wednesday, a staggering 45-degree drop was seen in the span of just three hours.

All told, a one-day span saw a 64-degree change in temperature, from a high of 83 to a low of 19, a record for the state in the month of October and just two degrees shy of matching Denver’s all-time record drop of 66 degrees on January 25, 1872. On that date, the temperature plummeted from 46 degrees to -20 degrees.

Back to 2019: Citizens tried their best to cope with the jarring transition in their environment, to mixed success. On Wednesday, the city’s Washington Park was full of joggers and shorts-wearing outdoor enthusiasts. Thursday, only the most devoted runners were out, bundled up against the frigid weather.

The cold snap also brought with it some freezing drizzle which prompted several vehicular accidents, including 200 reported during Thursday's morning commute. It’s expected to warm up some in the coming days, but residents shouldn't get too comfortable: Melting ice could lead to potholes.

[h/t KRDO]

Fall Foliage Is Running Late This Year

Free art director/iStock via Getty Images
Free art director/iStock via Getty Images

The August arrival of the pumpkin spice latte might have you feeling like fall is in full swing already, but plants aren’t quite so impressionable. According to Travel + Leisure, the best fall foliage could be coming a little later than usual this year.

Historically, the vibrant transformation starts to sweep through northern regions of the Rocky Mountains, Minnesota, and New England in mid-September, and reaches its peak by the end of the month. Other areas, including the Appalachians and Midwest states, don’t see the brightest autumn leaves until early or mid-October. The Weather Channel reports that this year, however, the forecast from the National Oceanic and Atmospheric Administration predicts unseasonably warm temperatures for the next two weeks, which could impede the color-changing process.

Warm temperatures aren’t necessarily bad for fall foliage, as long as they occur during the day and are offset by cool nights. Since meteorologists don’t expect the overnight temperatures to drop off yet, plants will likely continue producing enough chlorophyll to keep their leaves green in the coming days.

The good news is that this year’s fall foliage should only be about a week late, and meteorologist David Epstein thinks that when leaves do start to change color, we’re in for an especially beautiful treat. If the current weather forecast holds, he told Boston.com, we'll "see a longer season than last year, we’d see a more vibrant season than last year, and it would come on a little earlier than last year, which was so late.”

Though poor weather conditions like early snow, heavy rain, drought, or strong winds can cause leaves to fall prematurely, most trees right now are in a good position to deliver a brilliant display of color after a healthy, rain-filled summer.

Find out when you’ll experience peak fall foliage in your area with this interactive map.

[h/t Travel + Leisure]

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