AMSOIL 15W-50 100% Synthetic Small Engine Oil

AMSOIL 15W-50 Synthetic Small Engine Oil provides top-tier protection for small engines found in mowers, generators, and power washers. It's formulated to withstand tough conditions that small engines face, like high heat, constant load, and exposure to contaminants. This oil is not just a repurposed automotive oil but is specifically designed for the unique demands of small engines. It combats wear, power loss, oil consumption, and harmful carbon deposits, ensuring engines remain efficient and require less maintenance over time. The oil's long-life formulation allows for extended service intervals, up to 200 hours or one year, providing an extra measure of protection when equipment goes longer between oil changes. It's also effective in protecting against rust and corrosion, maximizing engine power, and reducing maintenance costs.

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Product Code:

SEFQT-EA

Review by Dave Mann

AMSOIL 15W-50 100% Synthetic Small Engine Oil Description

AMSOIL 15W-50 Synthetic Small Engine Oil provides top-tier protection for small engines found in mowers, generators, and power washers. It's formulated to withstand tough conditions that small engines face, like high heat, constant load, and exposure to contaminants. This oil is not just a repurposed automotive oil but is specifically designed for the unique demands of small engines. It combats wear, power loss, oil consumption, and harmful carbon deposits, ensuring engines remain efficient and require less maintenance over time. The oil's long-life formulation allows for extended service intervals, up to 200 hours or one year, providing an extra measure of protection when equipment goes longer between oil changes. It's also effective in protecting against rust and corrosion, maximizing engine power, and reducing maintenance costs.

AMSOIL 16W-50 Small Engine Oil

COMMERCIAL-GRADE

Engine dependability is vital to running a profitable business, yet most small-engine oils we’ve tested are nothing more than re-labeled automotive oils, which are formulated with fuel economy in mind, not durability. That won’t cut it. Compared to liquid-cooled automotive engines, small engines run hotter; operate under constant load; generate more oil-damaging contaminants; suffer from neglected maintenance; and are exposed to dirt, rain, snow and other extremes. Simply put, they’re far tougher on oil that most people think.

AMSOIL Synthetic Small-Engine Oil isn’t merely a re-badged automotive oil. Instead, we designed it from the ground up specifically for small-engine dependability. You can rest assured your engines are protected even during periods of extended use when there’s no time for scheduled maintenance. It’s built to solve the problems that plague small engines, including wear, power loss, oil consumption, harmful carbon deposits and stuck rings and valves. It helps landscapers, contractors and other professionals get more work done and save money.

AMSOIL 15W-50 100% Synthetic Small Engine Oil
  • Protects up to 200 hours
  • Helps extend engine life
  • Rust-inhibited

Excellent Wear Protection

AMSOIL Synthetic Small-Engine Oil is a shear-stable, high-film-strength formulation fortified with a heavy dose of anti-wear additives. It does not thin out due to mechanical shear, ensuring a thick lubricating film. It forms a durable barrier that protects against metal-to-metal contact.

Reduces Oil Consumption

In lab testing, AMSOIL 10W-30 Synthetic Small Engine Oil reduced oil consumption 61 percent compared to three leading 10W-30/SAE 30 motor oils (based on 125-hour lab tests of small engines using AMSOIL 10W-30 Synthetic Small-Engine Oil and three leading 10W-30/SAE 30 motor oils). Its heat-resistant synthetic base oils provide low volatility, excellent viscosity stability and strong oxidation resistance. 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

Engine wear, carbon deposits, valve sticking and piston-ring sticking reduce engine power. AMSOIL Synthetic Small-Engine Oil prevents ring and valve sticking while helping eliminate carbon deposits from forming. As a result, engines produce maximum power throughout their service lives, helping you get more work done.

Extreme-Temperature Performance

AMSOIL Synthetic Small Engine Oil’s saturated molecular structure offers outstanding extreme-heat resistance. In addition, we’ve fortified the oil with potent antioxidant additives that provide further resistance to damaging heat. Its powerful detergent additives fight carbon, varnish and sludge to maximize engine life. In extreme cold, the oil’s naturally high viscosity index and lack of paraffins (waxes) ensure it remains fluid and flows quickly, providing easier cold-weather starts and fast startup lubrication for reduced wear.

The piston and rings are virtually free of deposits and wear after 500 hours of severe-service testing in the Kawasaki FX 730 V engine.

TYPICAL TECHNICAL PROPERTIES

AMSOIL 15W-50 Synthetic Small-Engine Oil (SEF)

Kinematic Viscosity @ 100°C, cSt (ASTM D445) 17.8
Kinematic Viscosity @ 40°C, cSt (ASTM D445) 128.9
Viscosity Index (ASTM D2270) 153
CCS Viscosity, cP (ASTM D5293) 5128(-20)
Pour Point, °C(°f) (ASTM D97) -36(-33)
Flash Point, °C(°f) (ASTM D92) 234(453)
Fire Point, °C(°f) (ASTM D92) 262(504)
Four-Ball Wear Test (ASTM D4172), Scar, mm 0.42
NOACK Volatility, % weight loss (g/100g) (ASTM D5800) 3.2
High-Temperature/High-Shear Viscosity (ASTM D5481), cP 4.9
Total Base Number (TBN) (ASTM D2896) 11.6

APPLICATIONS

AMSOIL Synthetic Small-Engine Oil is multifunctional and can be used in gasoline engines, off-road diesel engines and certain transmissions. It doesn’t contain friction modifiers and meets JASO wet-clutch standards. It increases convenience and helps prevent misapplication.

Use the appropriate viscosity of AMSOIL Synthetic Small-Engine Oil in applications that require any of the following specifications:

  • API SL, SJ, SH, SG... (Gasoline)
  • API CD, CF (Diesel)
  • JASO MA/MA2 (Wet Clutch)

Use 5W-30 Synthetic Small-Engine Oil in small engines found in(not limited to) snowblowers, generators, power washers and other equipment that requires SAE 30 or 5W-30 motor oil, including those made by Briggs & Stratton, Honda, Kohler, Champion, Generac, Toro, Ariens, Troy Bilt, John Deere, MTD* and Husqvarna.

Use 10W-30 Synthetic Small-Engine Oil in small engines found in (not limited to) mowers (zero-turn, riding, stand-on, push),generators, power washers and other equipment that requires SAE30 or 10W-30 motor oil, including those made by Briggs & Stratton, Honda, Kubota, Kawasaki, Kohler, Tecumseh, Robin, Onan, Wisconsin, Powertrain, Yanmar, Linamar and Vanguard.

Use 10W-40 Synthetic Small-Engine Oil in small engines found in (not limited to) mowers (zero-turn, riding, stand-on, push), generators, power washers and other equipment that requires SAE10W-40 or 15W-40 motor oil, including those made by Kubota, Kawasaki, Robin, Onan, Linamar and Vanguard.

Use 15W-50 Synthetic Small-Engine Oil in small engines found in (not limited to) mowers (zero-turn, riding, stand-on, push), generators, power washers and other equipment that requires SAE 50, 10W-50 or 15W-50 motor oil.

COMPATIBILITY

AMSOIL Synthetic Small-Engine Oil is compatible with other synthetic and conventional motor oils. Adding other oils, however, will shorten the life expectancy of AMSOIL motor oils and reduce their performance benefits. AMSOIL does not support extended drain intervals where oils have been mixed.

Aftermarket oil additives are not recommended for use with AMSOIL Synthetic Small-Engine Oil.

TECHNICAL SERVICES

For immediate answers to your technical questions call (715) 399-TECH (8324) between 8 a.m. and 5 p.m. Central time or email tech@amsoil.com.

SERVICE LIFE

AMSOIL Synthetic Small-Engine Oil is a long-life formulation that has repeatedly demonstrated its ability to safely exceed OEM drain intervals in the toughest conditions. Extensive severe-service testing proves its ability to provide service life of up to 200 hours or one year, whichever comes first. It provides an extra measure of protection when equipment goes longer between oil changes than is recommended by the OEM.

AMSOIL PRODUCT WARRANTY

AMSOIL Synthetic Small-Engine Oil is Warranty Secure, keeping your factory warranty intact. AMSOIL Synthetic Small-Engine Oil is a high-performance replacement for vehicle manufacturer-branded products and is also backed by the AMSOIL Limited Warranty. For complete information visit AMSOIL.com/warranty.aspx.

HEALTH & SAFETY

This product is not expected to cause health concerns when used for the intended application and according to the recommendations in the Safety Data Sheet (SDS). An SDS is available at AMSOIL.com or upon request at 715-392-7101. Keep Out of Reach of Children. Don’t pollute. Return used oil to collection centers.

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