Stihl – MS 391 – Petrol Chainsaw

MS391 (Stihl 2-MIX) 4.5hp petrol chainsaw with 16/18/20″ bar.

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Product Details

Easy-to-manage, high-torque chainsaw for improved performance and user comfort when harvesting wood or sawing firewood. High torque over a wide range of speeds. Up to 20% less fuel consumption and up to 50% lower emissions compared with the previous model without 2-MIX technology.
Displacement cm³ 64.1
Power output kW/bhp 3.3/4.5
Power-to-weight ratio kg/kW 1.9
Weight kg 1) 6.2
Sound pressure level dB(A) 2) 105
Sound power level dB(A) 2) 117
Vibration values left/right m/s² 3) 4/4
STIHL Oilomatic saw chain pitch/type 3/8" RM
Oil tank volume cm3 350
Tank volume l 0.60
The engine requires a mix of petrol and engine oil.  Simply mix a Stihl 50:1 two-stroke engine oil with unleaded (95 octane) petrol. The simplest method is using a standard 5 litre fuel canister and to add 0.1 litres (100 ml) of Stihl HP 2 stroke oil, close and thoroughly shake the canister and the mix is ready to use. For this machine we recommend either Stihl HP or Stihl HP Ultra engine oil.

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