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Tire Damage Assessment – ASE Practice Question (VIDEO)

Description Technician A is assessing tire damage in order to make a repair decision. A puncture is located at the edge of the tread block closest to the sidewall. Technician B says it can be repaired with a conventional tire plug. Technician A says the area of the...

Mastering the Numbers – Part 2

In our earlier article, Mastering the Numbers Part 1, we discussed why shop owners should understand the financial side of their business just as much as the technical side. We introduced the Cost of Doing Business (CODB) as an important baseline financial concept....

SLABs: Slow, Loud, and Bangin’

I love investigating specific subcultures, especially car subcultures. Doing so provides a unique lens through which to understand the complex dynamics of the broader society, including power, identity, defiance, and cultural change. Consider slab cars, for example....

Colin Chapman: The Philosopher of Motion (Part 2)

In Part 1 of this piece, we looked at Colin Chapman’s career up to the mid-60s. In this part, we’ll pick it up in 1965.Lotus wins the Indianapolis 500 In 1965, Chapman and Clark teamed up and made more racing history, this time across the pond at the Brickyard. Their...

How Often Should You Really Flush Coolant? (VIDEO)

Description How do you know when it’s time to flush coolant? Technicians may have different views on the subject, but Dorman Training Center instructor Pete Meier explains how using a test strip at every service is a surefire way to get an accurate picture of the...

Colin Chapman: The Philosopher of Motion (Part 1)

Car designers have a lot of brain synapses firing. Some designers are driven by the pursuit of beauty, while others are motivated by the pursuit of speed. Giorgetto Giugiaro, Marcello Gandini, and Battista Pininfarina, though responsible for cars that raced, were...

Windshield wipers have had a surprisingly messy evolution

Windshield wipers have had a surprisingly messy evolution

by | Jul 7, 2022

We take many modern automotive conveniences for granted, and windshield wipers must be somewhere near the top of the list. You don’t think about them much until you’re driving in the rain with worn blades or, far worse, a bad wiper motor or linkage. Even on a clear...
Prime numbers are the secret to prolonged gear life

Prime numbers are the secret to prolonged gear life

by | Jun 9, 2022

I’m going to make a list of numbers, and I want you to see if you can tell me where you might know them from. Ready? Here goes: 3.23, 3.42, 3.73, 4.10, 4.11, 4.56. Rest your eyes here because the answer is in the next paragraph. My suspicion is if you’ve taken apart...