I have a KM130 and it runs like garbage if you use anything but Stihl Ultra synthetic oil. The problem is, I can’t buy it at any of the dealerships anymore, so I’m stuck having to buy Stihl moto-mix for that one. The rest of my Stihl equipment runs fine on regular Stihl oil and premium gas.
Stihl recommends HP Ultra for 4Mix engines. But there are better oils available like Amsoil Saber. Or even Echo Red Armor.
I have a KM130 and it runs like garbage if you use anything but Stihl Ultra synthetic oil. The problem is, I can’t buy it at any of the dealerships anymore, so I’m stuck having to buy Stihl moto-mix for that one. The rest of my Stihl equipment runs fine on regular Stihl oil and premium gas.