News & Updates

The Best Transmission Fluid

AMSOIL provides optimal performance and protection for your transmission. In fact, we're confident that Signature Series Synthetic ATF is the best transmission fluid on the market.

High-Octane Gas—Is It Worth It?

American drivers spend billions of dollars per year on premium gas that they don’t even need. Many drivers think that because it has higher energy content than normal gas that it also has a higher-octane rating.

How to Change Harley-Davidson Oil

The ideal way to make sure your motorcycle is protected from wear and deposits is to use the best motorcycle oil available and maintain it regularly according to recommendations.

Fluid Change Intervals—Rear & Front Differential

The frequency with which you should change your front and rear differential fluid is dependent on your vehicle, the conditions under which you drive, and the quality of your differential fluid.

Oil Change Intervals

How often you change your AMSOIL synthetic motor oil can depend on several factors, including which product you’re using and the conditions under which you’re operating.

Diesel Oil for Smaller Vehicles

AMSOIL 100% Synthetic Diesel Oil delivers exceptional performance, fuel economy, and protection for SUVS, cars, vans and smaller American diesel pickups.

Powersports Antifreeze & Coolant

AMSOIL Powersports Antifreeze & Coolant is formulated to keep hot-running and high-revving powersports engines cool while also protecting them from freezing temperatures.

Low Oil Pressure

The majority of motorists know how pivotal oil is when it comes to maintaining their vehicle, but in addition to oil level, oil pressure must also be considered. Low oil pressure can be majorly devastating to the performance of your engine and can even damage it.

Motor Oil Oxidation

Like you might suspect, oxygen can lead to oxidation of engine oil. Though oxygen is nearly 1/5 of our earth’s atmosphere, and one of the most common elements in the entire universe, vital to our survival, too much oxygen can be a major detriment to your engine. Learn more about AMSOIL products and how they can help slow oil oxidation.

Motorcycle Coolant

It’s easy to forget to change your motorcycle coolant in the midst of other bike maintenance. Usually it is simply out of sight, out of mind, but using an optimized coolant and antifreeze is pivotal in keeping your bike protected from extreme temperature and corrosion.

Hypoid Gear Oil

Hypoid gear oil is specially formulated with extreme pressure additives to be able to work ideally with and protect hypoid gears. AMSOIL SEVERE GEAR Synthetic Gear Lube provides exceptional hypoid gear protection.

Best Diesel Engine Oil Upgrade

It takes a special type of person to build more power through diesel upgrades, investing extensive time and money. Learn more about the best diesel engine oil upgrade according to AMSOIL experts.

Stop the Chatter

AMSOIL synthetic gear lubes and Slip Lock Differential Additive offer exceptional protection and minimal chatter in limited-slip differentials. Synthetic gear lubes from AMSOIL are limited-slip capable so they don’t usually require the addition of another friction-modifier additive.

Upgrading Your Differential Cover

Considering upgrading your differential cover? Take a look at some tips for improving performance and check out AMSOIL's Severe Gear gear lube to help!

Mobil 1 Vs. AMSOIL: Which is Better?

Engine enthusiasts are always looking to modify their vehicles to create more power. Some common modifications include performance exhaust, engine tune-up, increased intake, nitrous and more—but never an upgrade in your motor oil.

Natural Gas Motor Oil: Is It Better?

Is motor oil made from natural gas more exceptional than other oils? Yes, it is better than conventional oils, but so are most other high-quality synthetic motor oils, like AMSOIL Synthetic Motor Oil.

Timing Chain Stretch Issues

Many experts are of the opinion that soot is responsible for turbocharged gasoline-direct-injected engines suffering from timing chain stretch. Protect your engine with AMSOIL synthetic oil.

Do Motor Oil Additives Really Work?

Do oil additives really work and should you use them? AMSOIL's fully-formulated synthetic oils already provide exceptional protection and performance, and additives can actually detract from performance.

2-Stroke or 4-Stroke Dirt Bikes?

Before you determine whether to purchase a 2-stroke or a 4-stroke dirt bike, consider how you will be riding the bike. Learn more about the pros and cons of 2-stroke and 4-stroke dirt bikes.

How to Use AMSOIL Power Foam

One of the main reasons that people get rid of lawnmowers, string trimmers, chainsaws or other equipment is because it starts hard and runs rough due to carbon buildup in the engine. AMSOIL Power Foam is the answer to these dirty carburetor problems.

AMSOIL Signature Series Clear Engine Test Winner

AMSOIL Signature Series Synthetic Motor Oil achieved exceptional results in one of the new engine tests necessary to meet API SP and ILSAC GF-6 requirements–the Sequence IIIH Test

Tips for Optimal Boat Performance

Owning a boat can present challenges if you don’t keep up with regular maintenance. Extend your marine motor's life with AMSOIL marine products.

Return to the Desert

The first post-COVID racing event of the season was attended heartily by desert racers and fans alike.

Why Brad Lovell Loves Broncos

Brad Lovell and his brother, Roger, grew up in Colorado Springs, CO and spent their childhood camping and off-roading in the mountains with their family’s ’83 and ’88 Ford Broncos.

Mixing Synthetic & Conventional Oil

It is not dangerous to mix synthetic and traditional motor oil, but we wouldn’t recommend it. Diluting the performance of synthetic oil by mixing conventional oil in with it will only detract from your engine’s ability to run ideally.

The Best High Heat Motor Oil

Learn which motor oils are most effective in high-heat situations and how to care for your engine. AMSOIL synthetic motor oil can protect your engine from deposits and sludge, maintaining it for a longer and healthier life.

Traveling with an RV

Now is a fantastic time to take to the open road while exploring in an RV. Many families have recently purchased and rented RVs for safer means of transportation. Be sure to read through these RV travel and maintenance tips before your trip!

How Does AMSOIL Perform in the Harley-Davidson Milwaukee-Eight?

2016 saw the introduction of Harley’s Milwaukee-Eight V-twin engine increasing power and lowering the heat of the engine—so how does AMSOIL work in the Harley engine?

Harley V-Twin Oil Change Kits

A few popular requests from V-twin riders include kits for newer Harley motorcycles with the Milwaukee-Eight* engine and kits with a black filter option in addition to chrome.

What is Break-In Oil & Why/When Should It Be Used?

Keeping an engine up to date is a consistent fight against deterioration. This wear on your engine can lead to not only costly damage, but a reduction in compression—which can compromise your engine’s power.

How to Keep Your Marine Motor Running Well Long-Term

Hear from an AMSOIL Mechanical Lab technician about potential marine motor issues and what is necessary to make sure their motors perform exceptionally for years to come.

Finding the Best Diesel Oil

Purchasing a diesel truck is a significant investment, and you don’t want to compromise when it comes to protection. AMSOIL’s diesel oils are among the best in the market, delivering optimum diesel engine protection, effectively preserving the horsepower you desire and keeping you on the road.

How Oil is Impacted by Start-Stop Engines

Almost all technologies influencing the auto industry have one common goal: the best possible fuel economy. Start-stop engines are another means car manufacturers have at their disposal to make sure vehicles adhere to tomorrow’s increasing fuel-economy regulations.

Extend Turbodiesel Engine Life

Turbodiesel vehicles have established a loyal customer base in North America. Follow these sound maintenance practices to extend the life of these powerful and expensive engines...

Reduce Costs & Maximize Cold-Weather Reliability with Fuel Additives

Motorists favor diesels for their towing capacity, fuel efficiency and excellent durability. But cost of ownership and cold weather can pose challenges. As performance concentrates, AMSOIL diesel fuel additives help reduce overall costs and combat the negative effects of cold temperatures...

Why Motor Oil Deteriorates

Like just about everything else, motor oil has a lifespan. Even the best oils eventually require you to change them. Historically, many motorists like the convenience of changing oil with the seasons, visiting the quick lube or pulling the ramps out of their garage each spring and fall...

A Victory for Consumer Freedom

AMSOIL continues to fight the false narrative advanced by some original equipment manufacturers (OEMs) that you must use the OEM brand of parts and lubricants in your vehicles and equipment to maintain your new-vehicle warranties...

Optimum ATV Life & Performance

ATVs and UTVs used for racing, trail riding, heavy hauling and nearly every other application share at least one trait: they pose significant challenges to the fluids that protect them. Despite spending thousands to purchase and modify their machines, some enthusiasts mistakenly see no reason for using premium fluids when performing service...

New ATV/UTV Oil Change Kits Offer Maximum Convenience

AMSOIL ATV/UTV Oil Change Kits combine everything needed to perform an oil change on the most popular models of Polaris ATVs and UTVs in one convenient package...

Internal Diesel Injector Deposits: A New Twist on an Old Problem

Advancements in diesel fuel delivery systems have resulted in more power, improved fuel economy and fewer emissions. But one challenge remains: performance-robbing deposits. AMSOIL diesel fuel additives address the problem...