John Baker

Recent Posts by John Baker

DOT 3 and DOT 4 Brake Fluid: What’s the Difference?

Glowing red brake rotor from heat

The primary difference between DOT 3 and DOT 4 brake fluid is their respective boiling points. I suspect I know your next question. But first, some background. The U.S. Department of Transportation (DOT) classifies brake fluid into four main categories:



What Should I Do with Used Motor Oil?

Container for used motor oil recycling

While most motorists pay someone to change their oil, 25 percent of us still crawl under our vehicles and do it ourselves. When we’re done, what do we do with the used motor oil?



Synthetic vs. Conventional Oil: The Definitive Guide

AMSOIL, conventional vs. synthetic oil, cold pour

In the battle of synthetic vs. conventional oil, most motorists today know that synthetic oil emerges victorious. It’s widely understood that synthetic oil provides improved wear protection, engine cleanliness and fuel efficiency, among other benefits. Synthetic oil also lasts longer, offering increased convenience and cost savings. But what makes synthetic oil better than conventional oil?

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How to Pick the Right Motor Oil for Your Car

conventional and synthetic oil

The glut of motor oils available can quickly induce analysis paralysis. How do you pick the right motor oil for your car?



What Motor Oil is Best for Winter? (And Other Cold-Weather Questions)

Synthetic oil is best for winter. We’re done here. If only it were that simple. But most people want empirical data to support such claims.



What is the Shelf Life of AMSOIL Synthetic Lubricants?

Pouring oil

AMSOIL synthetic lubricants are designed to retain their original performance after a reasonable period of time in your garage or storeroom. Proper storage ensures the freshest, most effective products possible.



How Engine Wear & Deposits Kill Horsepower

custom show truck at show

Most people equate engine wear and deposits with a sudden, catastrophic engine failure that leaves you stranded alongside the road. In reality, wear and deposits are more likely to erode engine power and efficiency over time. Here’s how it works and what you can do about it.



Should I Change Fluid in a Filled-for-Life Transmission?

Automatic transmission

Casual motorists generally take no interest in crawling under their vehicles on a Saturday afternoon. And, when was the last time you heard someone express excitement over dropping their car off at the dealership for maintenance?



How Much Oil Does My Car Need?

The answer seems simple: probably about five quarts. But, if you drive a small car with a four-cylinder engine, it’s likely closer to four quarts. However, the V-8 engine in your truck could require about seven quarts. My in-laws’ RAM diesel pickup takes 12 quarts of motor oil.



Is an Engine Flush Good or Bad?

engine flush after

To flush or not to flush. It’s a question whose answer is obvious in the bathroom, but vigorously debated in the garage. Let’s get right to the point. Is an engine flush good or bad?