About Duncan's Oil And More

Your trusted AMSOIL dealer

Why AMSOIL?

AMSOIL specializes in developing synthetic lubricants that offer innovative answers to the greatest challenges vehicles and equipment present. The extraordinary performance of AMSOIL synthetic lubricants in a range of markets – automotive, powersports, industrial, racing and more – has made our influence in the industry unmistakable and our brand highly respected.

Since 1972, AMSOIL has been the leader in synthetic motor oil technology. Our commitment to innovation has resulted in legions of brand-loyal customers who demand the absolute best for their equipment.

AMSOIL In Action

AMSOIL Tech Tips: Mech Lab

A look inside the AMSOIL Mechanical Lab

Performance Testing & Documentation

AMSOIL Dyno Testing Results

See the hard data behind AMSOIL's superior performance. Our dyno testing proves the measurable benefits of using AMSOIL synthetic lubricants in real-world conditions.

📄 View Dyno Testing PDF
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Save as a Preferred Customer

  • $10 for a six-month membership
  • Save up to 25% on Every Order
  • Exclusive promotions and more

Why Synthetic Oil?

Conventional lubricants are refined from crude oil and contain contaminating elements such as sulfur, nitrogen, oxygen and metal components like nickel or vanadium. These impurities can reduce performance and shorten engine life.

AMSOIL synthetic lubricants are chemically engineered to be pure and uniform, providing:

  • Better high and low temperature performance
  • Reduced oil consumption and emissions
  • Improved fuel economy
  • Longer drain intervals
  • Superior wear protection
  • Cleaner, more efficient engines

Ready to Experience the AMSOIL Difference?

Browse our product selection and see why AMSOIL is the choice of professionals and enthusiasts alike.

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