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.
HOT OFF THE PRESS
Square drive: make or buy before you need ‘em
Female metric square drive plugs were new to me. They might be to you, too.
Customer states truck was vandalized… Do you know what happened here? (VIDEO)
Each line item confirms it—cheating doesn’t pay.
Watch this video on the invention of the Ford V-8 engine
Ford made a V-8 engine affordable to the mass market consumer for the first time.
SHOP STUFF
Auto care news and advice you can use.
Welding tips for automotive repair: What you need to know (VIDEO)
Any auto repair shop worth its salt has at least one welding rig to handle all kinds of jobs.
What is the best type of air filter? (VIDEO)
Air filter elements come in a variety of shapes and designs, but which one is right for you?
Maine voters approve ballot measure requiring automakers to share diagnostic system access
With 84% approval, it’s the latest electoral show of support for providing owners and independent garages with more ability to repair motor vehicles.
Thread repair for mechanics: an incomplete guide to essential products and procedures
Proper tooling and techniques are critical to repairing threads—and if you’re a mechanic, neither are marketed well to you.
The one part of the car you’ll never install for a customer
DIFM customers just won’t purchase this common underhood part.
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.
The Shop Press Automotive Paragon series: a recap
Let’s review some of the icons and oddballs we’ve featured here so far.
Torches for courses: which heating tools should a mechanic own?
Supplement your shop’s oxyacetylene torch with alternatives.
More ways to use oil pan alignment pins around the shop! (VIDEO)
These handy tools can are useful for all kinds of alignment tasks involving covers, pans, and gaskets.
A few tips for ball joint removal
If you’re a budding technician, a few of these pointers might help ya during front end work.
Automotive professionals vs. popular auto myths! (VIDEO)
We assembled a list of common and confusing advice, then asked the gang to weigh in on some very questionable practices.
VIDEOS
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.