What Are Piston Rings?

What do piston rings do?

Piston rings seal the combustion chamber, keeping combustion gases in and oil out. Properly working piston rings are vital to maximizing engine power.



What’s the Best Synthetic Motor Oil?

Signature Series oil change

Want the best synthetic oil for your engine? Many oil companies say they have the best, but we offer the scientific data to back it up.



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

Car driving in snow during winter

Synthetics are a better choice when looking for a winter motor oil. They remain fluid in cold weather to ease cold starts and improve wear protection.



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. Engine compression = power For your engine to

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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.



AMSOIL Heads to SEMA New Product Showcase with 13 New Products

SEMA show las vegas convention center

The mighty SEMA show is just around the corner, and our AMSOIL trade show team is busy preparing for another successful presentation to the key players in the automotive industry. SEMA is where companies learn of the latest news, products and technology developments that shape the automotive aftermarket.