Johnny's Auto Service Tire Safety: Washington vs. Lincoln

Posted May 9, 2017 2:38 AM

Welcome to the Johnny's Auto Service automotive blog. Today, let's talk about the effect of tire wear.

Let's focus on stopping in wet Lanham conditions. In order for a tire to have good contact with the road, it has to move the water out of the way. If it can't move the water, the tire will actually ride on top of a thin film of water.

That's called hydroplaning. If it's really bad, Lanham drivers can actually spin out of control - endangering themselves and the other drivers around them. At best, you won't stop as fast.

So how does a tire move water? It has channels for water to flow through. Look at your vehicle tire and you'll see channels: channels that run around the tire and channels that flow across the tire. They're designed to direct water away from the tire so it can contact the road better.

And the deeper the channel, the more water it can move. A brand new Johnny's Auto Service tire has very deep channels and can easily move a lot of water. As the tire wears down, the channels become shallower and can move less water. When it wears down enough, it can seriously affect your ability to stop your vehicle on wet Lanham roads.

So that's why it's so important for Lanham drivers to replace their vehicle tires when they get worn. Consumer Reports and other advocate groups call for a standard of 3/32 of an inch and they have the studies to prove it.

At Johnny's Auto Service, we want our customers to know that the deeper recommended tread depth makes a big difference. Stopping distances are cut dramatically on wet Lanham streets. A safe stop from MD speeds with 4/32 of an inch of tread would result in a crash with worn out tires.

There's an easy way to tell when a tire's worn to 4/32 of an inch.

Just insert a quarter into the tread. Put it in upside down. If the tread doesn't cover George Washington's hairline, it's time to replace your vehicle tires. With a Canadian quarter, the tread should cover the numbers in the year stamp.

Many Lanham residents have heard of this technique using a penny and Abe Lincoln's head - the old method. That measure gives you 2/32 of an inch – half the suggested amount. Of course, vehicle tires are a major purchase. Most of us in Lanham want to get as many miles out of them as we can. But there's a real safety trade-off. It's your choice.

Johnny's Auto Service
9401 Smith Ave
Lanham, MD 20706
301.577.3140



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