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Old 08-07-2011, 10:25 PM
hartungej hartungej is offline
Motorized Bicycle Member
Join Date: May 2011
Location: Madison, WI
Posts: 23
Default Re: is 40:1 ok after break in?

I was initially told to run 50:1 semi-synthetic in my Grubee. I do run full throttle for about 1/2-3/4 of my 7 mile commute. Burned the engine out after about a month! She locked up and left me hitching a ride! Ambient temperature was probable about 80 degrees.
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