Re: Top Speed, 80cc Chinese motor? what is the record?
I wouldn't be afraid to run either of those oils, Stihl or Echo either one wouldn't recommend or make a junk oil for their products.
I know we have members who run the Echo semi synthetic at 50:1 and have good results with it. Xseler is the first member that comes to mind.
I dont always ride WOT, but when I do..I do my best to keep the rubber side down..Ride safely my friends!