Originally Posted by BiMoPed
They are so confident about the Opti-4 oil that they offer to double your
Can I get that in writing with the agreement to buy my blown motor if it does?
Oh, and barelyawake. I didn't mean a tighter fit. I meant less tolerance for inconsistencies in fit and finish. Less jaggies to rub together, less things out of round, etc. Just better built. For instance, I watched a video where this guy purposely destroyed a weed whacker engine with straight gas. It ran WOT for well over 2 minutes IIRC before it seized, and that was sitting still so no air flowing over it like these engines get. I wonder how long a China would last doing that.