Join Date: Sep 2018
Location: Vancouver Island, BC Canada
I think I've figured out this mpg puzzle as I hadn't achieved the gas mileage I was expecting when I first bought the bike.
So, finally knowing that my odometer was accurate, running on a 15T front sprocket, and now experimenting with 91 octane ethanol-free gas, yesterday I rode 160kms (100 miles) on a winding, slow road to test and see if what kind of mpg I could achieve.
Like Okeydokeyo's post above, I've been fairly meticulous about recording mpg since day one. And the best mileage I experienced were in the early days while riding conservatively during break-in - and I hadn't yet changed the sprocket. My best tankfull was approx 74 mpg (imp = 60 mpg US), using 10% ethanol (87 octane) regular gas.
After going to 15T and riding a little faster on the hwy, my mileage slipped to about 70mpg (56 mpg US) and lately, riding faster, to about 66mpg (53 mpg US).
So yesterday I was on my 2nd tank of ethanol free 91 octane gas, with about 72 kms already on the trip odometer since fill-up. I rode 80kms (50 miles) from my place outside of Victoria BC to Jordon River, (not River Jordan) and then back again, 160 kms total. I probably averaged about 55 - 75 kmph (35 - 45 mph) with the occasional 90 - 100 kmph bursts to pass or short hwy sections. There was a bit of stop and go, but mostly steady meandering following light traffic. Beautiful day, about 50 degrees F.
BTW, the v-x 300 seat is uncomfortable after 1 hr+... I'm 5'9, 170 lbs, for the record. After stopping @ JR, I took a picture of my dash, grabbed a coffee, stretched and rode back home.
I filled up after the ride and calculated 79.67 mpg! (63.75 mpg US). I had started with 72km already on trip A odo and that was mostly hwy...100kmph.
I stopped @ Jordon River @ 152 and refueled @ 230. My total fuel consumption for 230kms was 8.162L @ C$1.489/L = C$12.15 ( = 2.156 gal US @ = US$4.21/gal premium = US$9.17 ) $US = $1.325 CDN.
So, as previously stated by okeydokeyo, whisperquiet and others, the moral of the story is keeping the speed and RPMs down (below 6,000) and one can achieve better gas mileage...i.e; go 70kmph in 6th.
Below are some pics of my dash readings - (1) after reaching my destination, (2) at the gas station, (3) looking south to Washington State and Olympic mountains. Notice how skewed the range computer is in 1st pic - this is after the last 30kms, plodding along at about 70kmph...computer thinks I can go another 515kms!
I'm impressed with CA200's claim of 70mpg US = (84mpg imp) on a CTX700.
Thanks for listening.
Last edited by Pekes17; 01-14-2019 at 06:30 PM.
Reason: syntax, spelling, clarity, rambling...