QUOTE(Charles @ Jul 30 2008, 08:33 AM)

I wouldn't expect anything above 15 mpg no matter how you run it. Start using the horsepower and you'll be lucky to see 10 mpg. There is no free lunch. Horsepower requires fuel. Fuel economy is not the reason for buying a Turbo Z1!
I have to agree with Charles on this one. His figures might be a little off but you are not going to save HUGE amounts of money with any 4-stroke or SDI 2-stroke. I ride with all of them, sure there are some better then others in certain conditions. But if you can afford a $10000 sled and can't afford $5.00 extra on a fill up??? (that is being on the high side of things) This fuel economy argument makes me laugh. My wife's 2-stroke can burn $5.00 more a fill up then my Jag, but who gives a shit, she loves her sled and doesn't want a 4-stroke...believe me I have tried to talk her into one.
I get 16-18MPG canadian all the time with my Jag. If we are riding hard I will beat other 4-strokes and even the SDI's sometimes, if we are cruising they are better then me. But the difference either way is minimal.
For me, the fuel economy of the Jag is my least important benefit. The power delivery, throttle response, quietness and ride are the huge benefits for me. But hey, each to their own, if you are buying it for fuel economy...you won't be disappointed, they are very good!!