Hi All
I use Stihl petrol same as aspen two mixture on my chain saws and my combi hedge cutter had to adjust combi engine they all run sweet now.I am also starting to run my merry tillers that I show on Stihl 4 stroke petrol so far no problems
As you know when we show we only run the engine if and when required and do not use a lot of petrol
Thanks
George S