Originally Posted by
craptastico
This is a falsity. In general scooter emissions are equivalent to that of an SUV. Yes you are using less fuel but due to the mixing of gas and oil the emissions are dirtier than other vehicles that use catalytic converters filter out particulates.
Even with 4-stroke engines? I could easily see that with crappy 2-strokes, but I don't really know about modern scooters.