Fuel requirements for a Stihl 131 Polesaw with the 4mix engine?
hi Ray
For your polesaw Stihl HT 131 with 4 mix engine you need a fuel/ oil mixture.The lubrication of the engine is realised through the fuel/ oil mixture(you need a superior quality of the oi for the mixture ).Buy it from an authorised Stihl dealer shop.Any other oil is not needed on the 4 mix engine.
best regards savumihai71
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