Homelite Consumer Products 4.0 Amp, 13 In. Trimmer "fuel oil quality testing" Questions

...fuel can be used in all ECHO 2-stroke equipment, provided the oil is ISO-L-EGD and JASO M345 FC/FD certified. ISO-L-EGD and JASO M345 FC/FD oil must be used with a mid-grade (89 octane) or premium ...