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Mac Demere

Mac Demere

Mac Demere is a veteran automotive journalist and a recovering race car driver. He raced in the 24 Hours of Daytona and NASCAR Southwest Tour series, and co-drove to victory in five 24-hour races. In addition he was a certified test driver for a major tire maker. He currently is an instructor for an advanced teen driving school.

Stories by Mac Demere

Chips and Cracks: When to Repair or Replace a Damaged Windshield

Sep 13, 2018

If your vehicle’s windshield gets chipped or cracked, should you repair or replace it? Regardless of where you live, your windshield may take a beating. There could be pea gravel falling from uncovered construction trucks, sanitation vehicles laying down salt and sand when the weather calls for it and the occasional chunk of unknown debris kicked up by cars passing by. I once […]

Fuel Functionality: What If You Add the Wrong Fuel To Your Tank?

Apr 26, 2018

Today’s gas pumps display a potentially confusing array of names, colors and alphanumeric symbols. Gasoline comes in five or more varieties, and that doesn’t account for diesel. Mix them up and the results may result in a ruined engine, corroded fuel lines or, if you’re lucky, no serious damage. What Happens When You Put Gasoline Into A Diesel […]

Gas Tanks: Why Aren’t All Fuel Doors on the Same Side?

Mar 27, 2018

In the United States, there are no regulations that specify where a fuel door should be placed. So, car-company engineers can place the door to the gas tank on whichever side offers the easiest packaging, according to Ford spokesman Mark Schirmer. “The placement of the fuel door is mainly a factor of fuel tank design, […]

Understand Your Tire Pressure Monitoring System

Jun 25, 2015

Warning lights on your dash shouldn’t be ignored. They’re there to alert you when some aspect of your vehicle needs attention, typically in an attempt to protect the vehicle and/or its passengers. But one warning that was added to dashboards in recent years could use some clarification: Tire Pressure Monitoring System (TPMS) light. The TPMS light is […]

Tires Can Wear Out Even If They Haven’t Gone Very Far

Sep 22, 2014

If you must buy used tires to outfit your vehicle, there are some important points to consider before you take the plunge. A tire begins to diminish the moment it leaves the assembly line. Its first hundred miles is the best it will offer and it’s downhill from there. Between six and 10 years, its […]

Don’t Let Road Gators Bite

Jun 19, 2014

Summer is prime season for car-eating road gators. It’ll last well into September, according to a study by the National Highway Transportation Safety Administration. These vicious beasts can lie in wait any time, especially on interstates where the speed limit is 70 or 75 mph. Most motorists notice “road gators” safely sunning themselves on highway shoulders. Road gators, says […]

Big Rigs and Cars: Tips for Coexisting on the Highway

May 22, 2014

Imagine your doctor has ordered you to exercise on a running track surrounding a college football practice field. You must use the track and share it with the university’s athletes. Sometimes, 350-pound linemen lumber along, blocking your way, but then they’ll break into a sprint until you can feel their breath and sweat. Meanwhile, lightning-fast […]

New Tires To The Rear

May 13, 2014

If you buy only two new tires, consider putting them on the rear axle. Purchasing four tires is the ideal, but as a cheapskate, I understand the pain of tossing two half-worn tires when the other two are completely worn out. I’m here to help fellow tightwads stay safe. Stop with the “even ifs.” No matter […]

Maximize Your Car’s Computer-Controlled Driving Aids

Feb 20, 2014

Your vehicle is likely equipped with one or more computer-controlled driving aids — digital miracles that can save your bacon when things go sour. However, they need a little help from the organic software: That would be you. Electronic Stability Control The most wondrous of the computer driving aids is electronic stability control (ESC). Imagine you […]

Choosing a Safe Car for Your Teen

Jan 28, 2014

One of my offspring recently graduated from college, and the other is still in school: I’ve conducted a LOT of research into teen driving safety in the past decade. The Centers for Disease Control and Prevention reports that car accident risk is higher among 16- to 19-year-olds than any other age group. In 2010 alone, nearly […]