PLOO-shun, buddeh ....... PLOO-shun ....... The PPM of HC were off the scale for that plug-foulin', oil-spittin' TEW-stroke crap ...... not to mention the liquid oil "meeshuns". But oddly enough - there is renewed interest in 2-cycle technology for high-density powerplant applications. My boys at Renault hare working out the kinks in a twin-charged, 2-cycle diesel that should pump out about a hundred REAL HP from a 750cc lump - and get about 120mpg's in a car with an inertial weight of about 2200lbs ....... Two cycle engines aren't dead, yet - they are waiting to be fully appreciated!!!