Small Engines

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2-Stroke vs. 4-Stroke Engines: Key Differences
Two-stroke and four-stroke engines each have pros and cons.
January 19, 2026

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Why Does Gasoline Go Bad?
Chemical and physical changes in gasoline can lead to poor engine performance and potential damage.
December 26, 2025

• How To
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• Small Engines
Maximizing Performance in Splash-Lubricated Engines
Splash lubrication is common in small, single-cylinder, four-stroke engines found in lawn and power equipment.
April 7, 2025

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How Exhaust Power Valves Improve Two-Stroke Performance
Restore your lost engine power.
January 8, 2025

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Sportsman Spotlight: Edison Aldrich
October 10, 2024

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• Small Engines
Fix Hard-Starting Two-Stroke Engines
Ounces of Oil per Gallon Gas Mix Ratio to 1 1 gal. 2 gal. 2.5 gal. 5 gal. 20 6.4...
May 24, 2024

• Bypass Filtration
• How To
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Oil Filter Basics: Efficiency, Capacity and Flow
September 14, 2023

• How To
• ATV/UTV
• Diesel
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Motor Oil Specifications: How API, ILSAC and Automaker Standards Work
July 18, 2023

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• Diesel
• Ask AMSOIL
• Small Engines
• Cars & Trucks
How To Protect Pneumatic / Air Tools
July 17, 2023

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• Small Engines
Neglected Equipment – Air Compressors
June 29, 2023