Diesel Archives – AMSOIL Blog

Diesel Fuel Injector Problems: An Easy Solution

Mark Nyholm|May 23, 2019 8:29 AM

ULSD can lead to diesel fuel pump and injector problems due to insufficient lubricity. Here’s what you can do about it.

The Pros and Cons of Semi-Synthetic Oils and Synthetic Blends

Andy Arendt|May 21, 2019 1:40 PM

Generally speaking, synthetic blends and semi-synthetic refer to the same thing: an oil that uses a combination of conventional and synthetic base oils in its formulation.

Why Does Motor Oil Turn Black?

John Baker|Apr 26, 2019 9:22 AM

Find out why motor oil turns black and how that may affect your engine and, more importantly, if it signals the time for an oil change.

How Often Should I Change Front or Rear Differential Fluid?

John Baker|Apr 16, 2019 12:05 PM

How often you should change front and rear differential fluid depends on your vehicle, driving conditions and differential fluid quality.

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

John Baker|Mar 20, 2019 4:27 PM

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?

John Baker|Mar 12, 2019 10:16 AM

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

John Baker|Feb 28, 2019 9:20 AM

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?

John Baker|Feb 25, 2019 9:12 AM

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

How Much Oil Does My Car Need?

John Baker|Dec 03, 2018 9:10 AM

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.

What is Fuel Dilution (and Why is it Bad)?

John Baker|Oct 29, 2018 9:10 AM

Fuel dilution occurs when gasoline or diesel fuel infiltrate your engine’s crankcase and dilute, or “water down,” the motor oil.

Category: Diesel