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Clean and Powerful Pistons: Signature Series and the Sequence IIIH Test
Results in the test are a good indicator of how well an oil will perform in the real world.
September 22, 2026

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Hold On to Your Power
Signature Series maintained horsepower and torque throughout a 125,000-mile test, even under the elevated stresses of a high-output 3.5L engine.
September 18, 2026

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Quantifying Performance: Signature Series Motor Oil and the NOACK Volatility Test
Signature Series delivered 2X better protection against volatility, helping reduce oil consumption, minimize top-offs and keep engines cleaner.
September 4, 2026

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Neglected Maintenance: Brake Fluid
Consistent brake-fluid maintenance is essential for firm, dependable braking.
September 2, 2026

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Sportsman Spotlight: Bailey Broderick — A Day on the Rubicon
At just 22-years old, Bailey Broderick conquered the iconic off-road trail in a singular day.
September 2, 2026

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Sportsman Spotlight: The Racers and Riders Who Run AMSOIL
Meet the racers, riders and outdoor enthusiasts who partner with AMSOIL, and find out why they trust AMSOIL synthetic lubricants.
September 1, 2026

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Boat Maintenance Checklist: Engine and Lower Unit Tips
Avoid expensive boat repairs with this quick marine engine maintenance checklist.
August 5, 2026

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• Marine
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Can You Use Car Oil in a Boat? Why Marine Oil Matters.
Learn why marine engines need purpose-built oil that handles sustained load, high rpm, water exposure, corrosion and storage.
August 5, 2026

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New Formula, Same Promise: Maximum Engine Life and Performance
We discuss the next-generation Signature Series 100% Synthetic Motor Oil with AMSOIL Chairman & CEO Alan Amatuzio.
August 3, 2026

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A Data-Driven Guide to Slashing Maintenance Costs with AMSOIL
Running AMSOIL synthetic motor oil can reduce maintenance costs, prolong vehicle life and reduce the number of oil changes needed.
July 29, 2026