DEF is easy to contaminate, and fortunately, it’s also easy to test. Check to be sure that your customers’ DEF is up to spec with these simple tests.
Easy tests for diesel exhaust fluid (DEF) contamination (VIDEO)
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HOT OFF THE PRESS
A low-tech favor you can perform for every customer (and yourself)
Break out your paint pen—you’re the service writer now!
ASE test prep requires more than sample questions (VIDEO)
Do you have a study guide to prepare for your ASE exams? Which parts of that study guide do you use the most? Dorman Training Center instructor Pete Meier explains.
The TPMS tool that pays for itself
Why wouldn’t your shop purchase a few of these?
SHOP STUFF
Auto care news and advice you can use.
Fixing cracked plastic parts with a hot staple tool (VIDEO)
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.
Give your customers extra grease
Especially for your mechanically-inclined clientele, sometimes a fingerful of clean grease is a lifesaver.
This tungsten scraper is my new favorite tool.
A fellow YouTuber recommended it. Why not give it a try?
Polishing headlights vs. replacing them! (VIDEO)
Two solutions for yellowed, hazy headlights.
Parallel connectors vs. butt connectors
They look the same, but serve different roles. Here are the very specific scenarios where the lesser-known parallel connector shines.
ABOUT SHOP PRESS
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.
SHOP STUFF
Auto care news and advice you can use.
Choosing the right brake fluid
Just because it says “DOT 4” on the bottle doesn’t mean it’s the correct DOT 4 for the vehicle.
Vehicle weights are increasing. Can your lifts handle it?
As new cars and trucks, especially EVs, get heavier than ever, it’s important to check your lift’s rating and condition.
Diagnostics case study: don’t overcomplicate things
One basic vehicle checkover has several lessons to teach.
Do you mind working on customer vehicles equipped with dash cams?
As dashboard cameras become more common, repair professionals should know how to deal with them.
The story of the very first reverse gear in an American car
Reverse is an innovation that’s easy to take for granted—but it was a revolutionary addition to the automobile.
VIDEOS
What is a core charge?
A little glimpse into the world of making old parts new.
How do you inspect a serpentine belt for wear?
Inspection of a belt goes beyond the old standbys of checking for cracks and fraying.
Brake rotor thickness variation – ASE practice questions (VIDEO)
On a car with disc brakes, what is the most likely symptom of a vehicle with rotors that measured out-of-spec for thickness variation when measured at several places on the rotor surface?