STIHL engine technology: designed for long-lasting performance
STIHL promotes innovation across engine technology for improved efficiency, reliability and performance. From our reimagined four-stroke engine to fuel injection, STIHL engine developments help you rise to any challenge. Below are highlights of the innovative technology used in current STIHL petrol engines.
STIHL 4-MIX®
Four-stroke performance with two-stroke fuel simplicity — high power, greater torque, fewer emissions.
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Magnesium Pistons
Lightweight magnesium alloy pistons for a high-performance design that keeps tools easy to handle.
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STIHL 2-MIX Engine
High power, fast acceleration and reduced fuel consumption thanks to the stratified scavenging system.
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Fuel Injection Technology
Precise fuel delivery for quick acceleration and consistent performance at any altitude or temperature.
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Decompression Valve
Reduces starting effort by temporarily releasing cylinder pressure, cutting strain and fatigue.
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STIHL Fuel Tank Cap
Tool-free tank caps allow quick, clean refuelling with no tools required — even wearing gloves.
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STIHL Air Filter System
The long-life air filter system separates dust efficiently and extends the filter's service life.
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STIHL Carburettor Heater
The electric carburettor heater prevents icing below 10°C, for reliable winter starting and performance.
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