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Fuel log graph
Efficiency log for: Baby viff - 1986 Honda VFR 400R
  • Lifetime Fuel Economy: 51.3 mpg (US), 4.6 L/100 km, 61.6 mpg (Imp)
  • 90-day Fuel Economy: 52 mpg (US), 4.5 L/100 km, 62.4 mpg (Imp)
  • 3-tank Fuel Economy: 45.3 mpg (US), 5.2 L/100 km, 54.4 mpg (Imp)
  • EPA Combined Rating / % over rating: 0 mpg (US) / 0% (based on 90-day fuel economy)
  • Total fills: 19
  • Average cost per gal/L: $2.68 per gal (US); $0.00 per L (price data entered for 19 fill/s)
  • Average cost per fill: $6.54
  • Average distance cost: $0.05 per mi. / $0.03 per km
  • Total fuel used: 46.37 gal (US), 175.5 L
  • Total distance traveled: 2379.8 mi. / 3830 km
  • Total cost: $124.23
  • Average tank distance: 125.3 mi. / 201.6 km
Fill date Distance Fill amount Price Fuel Economy Details
2019-07-04 157.64 mi
253.7 km
3.949 gal (US)
3.29 gal (Imp)
14.95 L
133.08 kWh
$2.579
($10.18 total for this fill)
39.92 mpg (US)
47.91 mpg (Imp)
5.89 L/100 km
2.51 gal (US)/100 mi
844.2 Wh/mi
Switched carbs to NC24 carbs with sizeable velocity stacks, running richer jetting, plus aftermarket exhaust on now.

Been a while since bike has been ridden, fuel poured out of carbs when first started, then stopped leaking. Riding fairly aggressively with little tucking. Switched to reserve around 241 km.
2019-05-18 161.43 mi
259.8 km
3.955 gal (US)
3.29 gal (Imp)
14.97 L
133.28 kWh
$2.799
($11.07 total for this fill)
40.82 mpg (US)
49.07 mpg (Imp)
5.76 L/100 km
2.45 gal (US)/100 mi
825.62 Wh/mi
Forgot to punch in this fillup! Ran the friggin' thing nearly completely dry. Jetting experiments, carb sync(lots of idling), and aftermarket exhaust this tank. Switched to reserve at 252.0 km, then started running out of that fuel shortly after!
2019-04-28 157.14 mi
252.89 km
2.618 gal (US)
2.18 gal (Imp)
9.91 L
88.23 kWh
$2.959
($7.75 total for this fill)
60.02 mpg (US)
72.08 mpg (Imp)
3.92 L/100 km
1.67 gal (US)/100 mi
561.47 Wh/mi
Other people riding part of this tank. Did not switch to reserve.
2019-04-27 128.75 mi
207.2 km
2.077 gal (US)
1.73 gal (Imp)
7.86 L
69.99 kWh
$2.679
($5.56 total for this fill)
61.99 mpg (US)
74.42 mpg (Imp)
3.79 L/100 km
1.61 gal (US)/100 mi
543.61 Wh/mi
2019-04-27 126.57 mi
203.69 km
2.025 gal (US)
1.69 gal (Imp)
7.67 L
68.24 kWh
$2.649
($5.36 total for this fill)
62.5 mpg (US)
74.89 mpg (Imp)
3.77 L/100 km
1.6 gal (US)/100 mi
539.15 Wh/mi
Faster paced group riding, not a whole lot of tucking, lots of random braking.
2019-04-26 157.21 mi
253 km
2.687 gal (US)
2.24 gal (Imp)
10.17 L
90.55 kWh
$2.779
($7.47 total for this fill)
58.51 mpg (US)
70.18 mpg (Imp)
4.02 L/100 km
1.71 gal (US)/100 mi
575.98 Wh/mi
Unknown riding.
2019-04-07 154.8 mi
249.13 km
2.756 gal (US)
2.29 gal (Imp)
10.43 L
92.88 kWh
$2.589
($7.14 total for this fill)
56.17 mpg (US)
67.6 mpg (Imp)
4.19 L/100 km
1.78 gal (US)/100 mi
600 Wh/mi
Donít remember what kind of riding, did not need to switch to reserve.
2019-01-11 151.96 mi
244.56 km
2.935 gal (US)
2.44 gal (Imp)
11.11 L
98.91 kWh
$2.099
($6.16 total for this fill)
51.78 mpg (US)
62.28 mpg (Imp)
4.54 L/100 km
1.93 gal (US)/100 mi
650.89 Wh/mi
Most of this tank was run last year, last 15 km was lots of hard acceleration. Didnít have to switch to reserve. Put gas stabilizer in. Corrected.

3.1% mileage added for larger front tire.
2018-08-26 132.61 mi
213.42 km
2.465 gal (US)
2.05 gal (Imp)
9.33 L
83.07 kWh
$2.679
($6.6 total for this fill)
53.8 mpg (US)
64.69 mpg (Imp)
4.37 L/100 km
1.86 gal (US)/100 mi
626.42 Wh/mi
Bike has been sitting a while, some romping, but otherwise mystery tank. Slight overfill. Corrected.
2018-07-08 141.07 mi
227.03 km
2.492 gal (US)
2.07 gal (Imp)
9.43 L
83.98 kWh
$3.099
($7.72 total for this fill)
56.61 mpg (US)
68.15 mpg (Imp)
4.15 L/100 km
1.77 gal (US)/100 mi
595.31 Wh/mi
Don't know what kind of riding happened for the first 120 km, but next bit was fairly gentle riding with a good bit of tucking. No radiator blocking. Corrected.
2018-06-17 111.28 mi
179.09 km
1.96 gal (US)
1.63 gal (Imp)
7.42 L
66.05 kWh
$3.299
($6.47 total for this fill)
56.78 mpg (US)
68.27 mpg (Imp)
4.14 L/100 km
1.76 gal (US)/100 mi
593.55 Wh/mi
First 60 km ridden by someone else. Washed bike and idled it some to help dry. Lots of good tucking this tank, no radiator blocking. Rode spiritedly with coworker. Did not switch to reserve. Filled with ethanol free gas. Corrected.
2018-06-10 133.18 mi
214.33 km
2.575 gal (US)
2.14 gal (Imp)
9.75 L
86.78 kWh
$2.749
($7.08 total for this fill)
51.72 mpg (US)
62.23 mpg (Imp)
4.55 L/100 km
1.93 gal (US)/100 mi
651.6 Wh/mi
Older brother riding entire tank. Corrected.
2018-06-10 108.01 mi
173.83 km
1.893 gal (US)
1.58 gal (Imp)
7.17 L
63.79 kWh
$2.749
($5.2 total for this fill)
57.06 mpg (US)
68.36 mpg (Imp)
4.12 L/100 km
1.75 gal (US)/100 mi
590.59 Wh/mi
Little brother rode for some of this tank, me for most of the rest. Some good tucking. Did not switch to reserve. Corrected.
2018-06-03 88.02 mi
141.65 km
2.344 gal (US)
1.95 gal (Imp)
8.87 L
78.99 kWh
$2.779
($6.51 total for this fill)
37.55 mpg (US)
45.14 mpg (Imp)
6.26 L/100 km
2.66 gal (US)/100 mi
897.41 Wh/mi
Older brother rode for significant portion of this tank, younger brother for other, and me for a little bit romping on it trying to tune away a mid range flat spot unsuccessfully. Carbs synced this tank, so lots of idling. Main jets are now 110 front 112 rear instead of 115 all around. Fuel tank taken off several times on this tank, losing fuel. Corrected.
2018-05-06 52.92 mi
85.17 km
1.475 gal (US)
1.23 gal (Imp)
5.58 L
49.71 kWh
$2.759
($4.07 total for this fill)
35.88 mpg (US)
43.02 mpg (Imp)
6.55 L/100 km
2.79 gal (US)/100 mi
939.34 Wh/mi
I rode for the first 10km of this tank. Started a few times without riding. The rest was my older brother riding, and the first 100 km of the next tank was him riding too. Corrected.
2018-03-18 80.14 mi
128.97 km
1.475 gal (US)
1.23 gal (Imp)
5.58 L
49.71 kWh
$2.469
($3.64 total for this fill)
54.33 mpg (US)
65.15 mpg (Imp)
4.33 L/100 km
1.84 gal (US)/100 mi
620.29 Wh/mi
Finally beat the NC30's gas mileage! Lots of 65-70 mph highway riding with serious tucking. incrementally blocked off about 1/3 of the radiator, now is showing proper temps. Corrected.
2018-03-18 86.87 mi
139.8 km
1.746 gal (US)
1.45 gal (Imp)
6.61 L
58.84 kWh
$2.799
($4.89 total for this fill)
49.75 mpg (US)
59.91 mpg (Imp)
4.73 L/100 km
2.01 gal (US)/100 mi
677.33 Wh/mi
Bled the cooling system once this tank, installed new 82C(180F) thermostat, lots of NASCAR mode. Corrected.
2018-02-18 145.94 mi
234.87 km
2.856 gal (US)
2.38 gal (Imp)
10.81 L
96.25 kWh
$2.279
($6.51 total for this fill)
51.1 mpg (US)
61.32 mpg (Imp)
4.6 L/100 km
1.96 gal (US)/100 mi
659.52 Wh/mi
99% sure the thermostat is stuck open. Completely blocked off the oil cooler. Did not switch to reserve. Wearing gopro for 1/2 of tank. Corrected.
2018-02-11 104.3 mi
167.85 km
2.084 gal (US)
1.74 gal (Imp)
7.89 L
70.23 kWh
$2.329
($4.85 total for this fill)
50.05 mpg (US)
59.94 mpg (Imp)
4.7 L/100 km
2 gal (US)/100 mi
673.35 Wh/mi
Stock gearing (15/45) for about 1/3 of this tank, 15/40 all else. Rear side fairing pieces missing for the entire tank. Coolant temp never really seemed to climb above 1/3, so I might either have a faulty thermostat, or I just need to block off some of the radiator. Some tucking, decent amount of P&G, but also a decent amount of full throttle runs. Was also wearing a gopro on top of my helmet for about 1/2 this tank. Corrected.

View: spreadsheet friendly fuel log output (for copy/paste)


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