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Old 09-13-2012, 07:57 AM   #46
Studly Adventurer
Joined: Feb 2011
Oddometer: 603
Originally Posted by BuzzJ View Post
As of the last fillup with 92 octane I am getting 72mpg as opposed to 63mpg with 87.
Unless you have raised the compression or advanced the timing you will get no benifit from high octane. 87 and 92 have the same energy content. 92 burns slower to retard knock in higher compression engines.

hexnut screwed with this post 09-13-2012 at 08:49 AM
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Old 09-13-2012, 08:19 AM   #47
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Joined: Oct 2007
Location: Central Wisconsin
Oddometer: 1,129
Get a WR250r or Crf250L

Originally Posted by outofcontrol View Post
I've almost got this scooter sorted out. Now I'm on the quest for the MPG that it should have. Somehow I'm wasting fuel somewhere.
I'm on my fourth tank, and averaging 51.7mpg.
53.9 (this one I tried to ease up on the throttle as much as possible and drive for economy, and had a couple oz of Seafoam)

My WRr gets 52 to 56 mpg combined (interstate at 70 mph plus some city) the CRF is reported to do even better, both burn cleaner too

That is my MPG... just trolling for fun. hope you get it all worked out....
In Wisconsin, the family fleet MPG AVG combined figures for each

Hyundai Veracruz (family truckster) = 20
VW Jetta TDI = 45
Yamaha WR250r = 53

overall (simplified/CAFE) avg = 39.3mpg

The VW is BY FAR THE MOST impressive, due to GVW, passengers etc... Damn thing will do 52 mpg on a HWY trip at 75mph. that is truly awesome.

I am not a hyper-mpg guy by the way.
Another inmate stole my Avatar...
WR250R... 15 cubic inches of raw power.
WRr re-build
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