DIY car maintenance

Inspect Brake Pads and Rotors Without a Mechanic

If you can check your tire pressure, you can do a basic brake check too. You do not need a lift, a scanner, or a marathon inspection just to figure out if your brake pads are getting thin or your rotors are starting to complain. You just need a good look, a good listen, and the discipline to take...

Engine vs. Cabin Air Filters

I have watched people get quoted real money for a job that takes less time than your coffee order. Engine and cabin air filters are two of the easiest maintenance items on most cars, but they get mixed up constantly. One protects your engine. The other protects your lungs. Both matter, and both are...

6 Car Fluids You Should Check Regularly

I grew up holding the flashlight for my grandpa, and the first lesson I learned was this: cars rarely fail out of nowhere. They give you little hints first. Low fluid is one of the clearest hints, and it is also one of the easiest things you can stay ahead of at home. In many vehicles, you can...

Change Your Engine Oil and Filter at Home

I grew up holding a flashlight for my granddad while he changed oil on anything that had an engine and a leak. Later, I spent a decade in repair shops watching people get charged real money for a job that many drivers can do in a driveway with a little patience and the right safety habits. This...

About Marcus Thorne

Welcome to Oil & Wrench . I’m Marcus Thorne , a former ASE-certified mechanic, lifelong automotive enthusiast, and the guy who hates watching good people get talked into repairs they do not need. If you’ve ever stared at a dashboard warning light like it’s a personal insult, you’re in the right...