Synthetic Small Engine Oil
The Synthetic Small Engine Oil is specifically designed for the high demands of power equipment. It prevents carbon buildup, improves fuel stability, and ensures smooth operation even after periods of storage. AMSOIL also offers fuel additives that protect engines from ethanol-induced corrosion​
AMSOIL 100% Synthetic Small-Engine Oil
These oils are built for hard-working small engines. They help fight heat, deposits, and wear. Pick the viscosity that matches your equipment and climate.
AMSOIL
AMSOIL 15W-50 100% Synthetic Small Engine Oil

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(460 reviews)
AMSOIL 15W-50 100% Synthetic Small Engine Oil
Product Code: SEFQT-EA
Thicker protection for hot running conditions
- Helps protect under heat
- Helps maintain oil film strength
- Helps reduce wear during heavy use
- Great for hot weather and hard loads
AMSOIL 10W-40 100% Synthetic Small-Engine Oil

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AMSOIL 10W-40 100% Synthetic Small-Engine Oil
Product Code: ASFQT-EA
Extra film strength for heat and hard use
- Helps handle higher temps
- Helps reduce wear in hot conditions
- Helps keep deposits down
- Great for demanding equipment use
AMSOIL 10W-30 100% Synthetic Small-Engine Oil

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(460 reviews)
AMSOIL 10W-30 100% Synthetic Small-Engine Oil
Product Code: ASEQT-EA
A great all-around viscosity for many engines
- Helps protect under load
- Helps keep engines cleaner
- Helps resist heat breakdown
- Built for tough small-engine duty
AMSOIL 5W-30 100% Synthetic Small-Engine Oil

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(460 reviews)
AMSOIL 5W-30 100% Synthetic Small-Engine Oil
Product Code: AESQT-EA
Strong protection for everyday small-engine work
- Helps fight wear and heat
- Helps reduce deposits and varnish
- Supports smooth starts and clean running
- Made for demanding small-engine use
Product Overview
AMSOIL 10W-30 100% Synthetic Small-Engine Oil
Delivers commercial-grade protection and outperforms conventional oils. Tough formulation protects against wear, heat and carbon deposits. Helps maintain power and promotes long engine life. Specifically designed for maximum equipment dependability. Service life up to 200 hours..
See the product data sheet for full details.
EXCELLENT WEAR PROTECTION
- Shear-stable, high-film-strength formulation fortified with anti-wear additives.
- Does not thin out due to mechanical shear, ensuring a thick lubricating film for maximum wear protection.
- Specialized chemistry forms a durable barrier that protects against metal-to-metal contact.
REDUCES OIL CONSUMPTION
- Reduced oil consumption 61% in lab testing compared to three leading 10W-30/SAE 30 motor oils.1
- Heat-resistant synthetic base oils provide low volatility, excellent viscosity stability and strong oxidation resistance.
- Helps engines run longer between top-offs, providing peace of mind they won’t fail due to oil starvation and will run dependably in the harshest conditions.
FORMULATED FOR POWER
- Prevents ring and valve sticking while helping eliminate carbon deposits.
- Reduces piston-ring and cylinder wear for maximum engine compression.
- Helps produce maximum power throughout their service lives, helping you get more work
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