Why Does My Engine Knock? 3 Possible Explanations.

Do you hear an engine knocking sound when you hit the gas? It could be due to pre-ignition or detonation. Here’s what you can do about it.



How Engine Sludge Forms. And How To Prevent It.

Engine sludge is a black gelatinous substance that wreaks havoc in engines. Combatting engine sludge begins with using a high-quality motor oil.



Do Older Engines Need Oil With ZDDP Additives?

Using a high-zinc oil with a high dose of ZDDP additives helps protect classic car and hot rod engines. AMSOIL Z-ROD Synthetic Oil contains 1400 ppm zinc.



Weed Eater Won’t Start? Try This

Weed eater, string trimmer, wee wacker cutting grass.

No matter what you call it – weed eater, weed whacker, string trimmer – chances are at some point it won’t start. Here’s how to get it running again.



Can I Use The Same Oil Filter Twice? (And Other Oil Filter Questions Answered)

Oil filter

In theory, your oil filter has a simple job: capture wear-causing contaminants and hold them in the filter media so they don’t run amok inside your engine. But lots of factors can throw a wrench into this plan, which can raise filtration questions.



ATV/UTV Maintenance: 7 Tips to Maximize Your Machine’s Life

King of the Hammers UTV

Do you want your ATV or UTV to last? Then practice these seven maintenance tips to maximize your machine’s performance and life.



More AMSOIL Products Available in the Award-Winning Easy-Pack

Sometimes an idea so great comes along it makes some wonder, “Why didn’t anyone think of this sooner?” Case in point: AMSOIL easy-packs.



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

How to check oil properly

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.