Small engines frequently distribute oil through the engine by splash lubrication. Unlike pressurized lubrication systems that use an oil pump to move the oil and maintain lubrication between engine components, in splash lubrication the crankshaft is partly submerged in the oil sump and its rotation momentum splashes oil on other engine components.
Pressurized lubrication has advantages in delivering consistent and precise lubrication to critical components under extreme conditions. It also dissipates heat better and improves durability and reliability in high-stress engines. However, pressurized systems are more complex and come with higher initial and maintenance costs and increased risk of failure.
Splash lubrication eliminates complex parts, making it a cost-effective solution for low-rpm and low-load applications like single-cylinder, four-stroke engines commonly found in generators, compressors, lawnmowers and other power equipment. Fewer components reduce manufacturing and maintenance costs with an added benefit of lower risk of mechanical failures.
Starving engine components of lubrication quickly leads to increased friction between moving parts. The resulting wear eventually causes catastrophic engine damage. AMSOIL Synthetic Small-Engine Oil is engineered to improve the performance and longevity of small engines that rely on splash lubrication.
Thermal Stability
AMSOIL Synthetic Small-Engine Oil has excellent thermal stability and resists breaking down under high heat, ensuring that the oil maintains its viscosity and protective properties when the engine runs hot. Consistent oil performance at high temperatures minimizes the risk of friction and wear on critical engine components.
Subzero Temperatures
An oil’s ability to coat moving parts quickly and effectively determines how well the engine is protected. The molecular structure of AMSOIL Synthetic Small-Engine Oil enables it to flow better at extremely cold temperatures, ensuring immediate lubrication that prevents damage caused by dry starts.
Sludge and Deposits
Conventional oils contain impurities that form sludge and deposits that can create blockages as the oil breaks down. AMSOIL Synthetic Small-Engine Oil resists oxidation and thermal degradation, helping keep internal engine components clean and promoting consistent oil distribution.
Friction and Wear
The molecular composition of AMSOIL Synthetic Small-Engine Oil maintains a thick lubricating film on engine components that reduces friction, which translates to less wear on internal engine parts and improves the engine’s overall durability.
Oil Life
Small engines often run intermittently under varying loads, which can accelerate oil degradation. AMSOIL Synthetic Small-Engine Oil has superior resistance to mechanical and thermal breakdown, requiring fewer oil changes and reducing maintenance time and costs.
Heavy Loads
Although splash lubrication systems are typically used in low-stress applications, some small engines do operate under heavy loads or at high rpm. AMSOIL Synthetic Small-Engine Oil protects the engine during demanding operation by maintaining consistent lubrication that helps prevent overheating and wear.
AMSOIL Synthetic Small-Engine Oil
While splash lubrication systems are cost-effective and straightforward, their reliability and performance depend heavily on the oil’s quality. AMSOIL Synthetic Small-Engine Oil is engineered to provide reliable protection that helps reduce wear and extend both oil and engine life.
