Which of the following is the most critical result of a rust hole in an exhaust system?

The habits you form first can be the hardest ones to break.
The Proving Grounds crew takes on another round of The Mystery Box Challenge with new parts and a few new faces.
Air filters are an easy service item to overlook, but most manufacturers recommend a new filter every year or 15,000 miles.
Auto care news and advice you can use.
When plastic parts break, sometimes replacements can be prohibitively expensive or hard to find. Learn how to use a hot staple tool to salvage broken plastics for auto repairs and other projects.
Think you know your dash lights? Shop Press contributors Keith, Miriam, Chris, and Greaser try their best to identify all kinds of lights, symbols, and indicators.
Their emergency shouldn’t be yours unless they pay a premium to fix it.
At what point does an icon completely fail to provide critical information to a motorist?
The cabin air filter is arguably the most overlooked filter on the car.
Shop Press is the news and idea hub for everything related to working on cars and trucks, focusing on repair, technology, and wrenching lifestyle. With interesting stories from around the world, features on creative people and solutions, and all kinds of other stuff that’ll make you use your mind and your hands.
Auto care news and advice you can use.
Just because it says “DOT 4” on the bottle doesn’t mean it’s the correct DOT 4 for the vehicle.
A recent J.D. Power study found that a few simple amenities in your service center’s lobby go a long way toward making your customers want to come back, but few businesses have them.
Exhaust work is straightforward and (I think) easy to understand. Here are some pointers for service techs to avoid comebacks when hanging pipe.
Lubricant? More like lubri-can. A very cheap staple of most shops, I’ve learned to use it in a few unconventional ways.
Failing to perform these two vital service steps could cost time and money—or worse.
As dashboard cameras become more common, repair professionals should know how to deal with them.
Reverse is an innovation that’s easy to take for granted—but it was a revolutionary addition to the automobile.
“Rebuild in a can” is not the right way to fix the tool, but it will get you by until you can repair it correctly.