Thats scary for me [X(] I break in engines all the time and use the better part of a quart of fuel (quart of fuel $11.99 WERKS)[&o] I hate to be a pesimist but $10.00 and they buy fuel makes me wonder...........I could be wrong but I don't hardly ever have break in problems come back on me and I charge $15.00 + fuel[8D] and I spend about 2 hours on a break in, but its at my own time