Keep your STIHL running smoothly
During development, there are a number of questions we ask. How much residue do our fuels leave during combustion? How does the tool run from a cold start? How biodegradable is the product? What’s the oil viscosity like at different temperatures? Once the test results are in, our laboratories work hard to find the best formulae for every machine through extensive research, development and testing. Because at STIHL, we do like everything to run smoothly.