What Happens if I Use the Wrong Weight (Viscosity) of Oil?

Amsoil signature series oil weight scale

It depends on how your engine is built and how it reacts to the specific viscosity of oil you use. That’s pretty nebulous, so here are some examples.



AMSOIL 2017 Year in Review: Part II

amsoil snowcross duluth mn

AMSOIL is all about enthusiasts who work hard and play harder, whether on a sled, dirt bike or in a car. Together we’re fiercely “Devoted to Protection” when it comes to taking care of our vehicles and toys.



Your Most Common Motor Oil Questions Answered

fist holding wrench photo

One thing the Internet has done is create a lot more “experts.” In the old days when you had a car maintenance question, you knew whom to ask – ‘ol Mike up the street with grease under his fingernails and a rag in his back pocket.



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

How to check oil properly

Scott D. Galbreath asks via our Facebook page about the pros and cons of synthetic blend motor oils. Thanks for the question, Scott. Making sense of motor oil can be confusing and frustrating. Choosing among full synthetics, synthetic blends, semi-conventional, conventional, high-mileage full synthetics and synthetic blends is just the beginning.



What Motor Oil Should I Use in a Methanol Engine?

sprint car sliding corner

Frank wants to know, via our Facebook page, the pros and cons of using mineral oil versus synthetic oil in a methanol-fueled engine. Thanks for the question, Frank.



How Turbochargers and Direct Injection are Changing the Industry

polished turbocharged engine bay

Turbocharged, gasoline-direct-injection (T-GDI) engines have been the topic of many AMSOIL blog posts and other publications the last few months, and for good reason. In recent years these technologies have taken the automotive industry by storm.



The DIY Oil Change: Avoid These 5 Common Mistakes

AMSOIL Motor Oil Change

I’m probably from the last generation of people who largely changed their own oil. As the pace of life has increased and engine technology has grown more complicated, most people now pay a professional to take care of their auto-maintenance needs.



How Much “Synthetic” Is In My Oil?

Pouring oil

Unlike food and drug companies, which must disclose the ingredients in their products, lubricant manufactures aren’t held to the same mandate, which can cause confusion if you’re shopping for synthetic motor oil. Store shelves are lined with oils described as “full synthetic,” “semi-synthetic,” “synthetic” and even “100% synthetic.”



Does it Matter Which Brand of Motor Oil You Use?

How to Dispose Motor Oil

The Internet is abuzz over the latest Blackstone Labs newsletter. OK, “abuzz” may be a stretch. But the newsletter certainly has sent the motor oil geeks among us into a tizzy. The distinguished oil analysis laboratory sought to answer the age-old question: Does it really matter which brand of motor oil your use?



How Does Motor Oil Become Contaminated?

Motor oil deteriorates and becomes unfit for service due to accumulation of contaminants in the oil and chemical changes (additive depletion and oxidation) in the oil itself.