The Science of Multigrade Oils
Prior to the introduction of multigrade oils, the method to maintain proper viscosity year-round was seasonal oil changes.
The Four Types of Wear
Quality lubricants are key to guarding against wear and keeping vehicles running for the long haul.
Carry That Weight
When extreme loads break the lubricant film, metal-to-metal contact occurs, increasing friction and heat.
Why Motor Oil Deteriorates
The accumulation of contaminants and chemical changes in the motor oil eventually make it unfit for further service.
How Do I Switch from Conventional to Synthetic Oil?
You don't need to do anything special before you switch to synthetic oil after having used conventional oil.
Why Do Motorists Change Oil in the Spring and Fall?
Spring and fall constitute “oil-change season” for many, but that schedule is more tradition than a maintenance imperative.
- Diesel
- ATV/UTV
- Product Highlights
- Marine
- Motorcycles
- Ask AMSOIL
- Snowmobile
- Small Engines
- Dirt Bike
- Cars & Trucks
Can I Mix Synthetic and Conventional Oil?
While it's safe to mix synthetic and conventional oil since they're compatible, here's why it's best to avoid it.
Top 5 Motor Oil Myths Busted
Motor oil myths abound. Here are five of the most persistent along with our myth-busting facts.
