The factory had put break in oil in when they test ran the mower before giving it the final go ahead. My guess is that they forgot to drain it when they were done. The oil they give you is also a break in oil that needs to be changed after the manufactures recommended hours of use. If you don't...
Not from what i'm used to. My Snap-On was well worth the money even if it was a little expensive. I've owned it for 3 years and only had to have it calibrated once. I never had cycle it and it worked like a charm right off the truck! I would recommend something of a higher value than Harbor...
Stihl Fs 91r. Go ahead and get an Echo speed feed head for it, they're only like 30 bucks and you load it by putting a piece of line through it then turning it and it spools itself.