My last three tanks on the Honda CBR250R were 107, 110, 109 mpgUS. Interesting how the fuel economy has trended up from 98 earlier in the year when I first started riding it again after sitting for two years with the new tail and new chain. Does it take 8 80% tanks to get all of the stale fuel out? New Xring chains take 1000's of miles to break in? Worn Mobil 1 10W40 oil is more efficient after 5,000 miles?
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Will do an oil change to Motul 300V 5W30 soon. But the weather will turn colder which works against fuel efficiency.
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I'm also anxious to try the Michelin Pilot Street tires I took off of the Yamaha R3 on my CBR250R. I might get a few more percent with these long wearing commuter tires. The R3 lost some fuel efficiency when I switched to the more sport oriented Bridgestone S20Evo tires.
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