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Fuel log graph
Efficiency log for: TheGasHonda - 1998 Honda Civic LX
  • Lifetime Fuel Economy: 35 mpg (US), 6.7 L/100 km, 42.1 mpg (Imp)
  • 90-day Fuel Economy: 35 mpg (US), 6.7 L/100 km, 42.1 mpg (Imp)
  • 3-tank Fuel Economy: 35.9 mpg (US), 6.5 L/100 km, 43.2 mpg (Imp)
  • EPA Combined Rating / % over rating: 32 mpg (US) / 9.5% (based on 90-day fuel economy)
  • Total fills: 11
  • Total fuel used: 103.33 gal (US), 391.1 L
  • Total distance traveled: 3620.6 mi. / 5826.8 km
  • Average tank distance: 329.1 mi. / 529.7 km
Fill date Distance Fill amount Price Fuel Economy Details
2009-12-11 376.5 mi
605.92 km
10.87 gal (US)
9.05 gal (Imp)
41.15 L
366.32 kWh
34.64 mpg (US)
41.6 mpg (Imp)
6.79 L/100 km
2.89 gal (US)/100 mi
972.96 Wh/mi
Kept resetting the engine light. error code for leak in gas tank kept popping up, replaced gas cap and error came back. Lot's of snowy slow highway driving which might contribute to bad fuel mileage.
2009-12-09 354.2 mi
570.03 km
9.578 gal (US)
7.98 gal (Imp)
36.26 L
322.78 kWh
36.98 mpg (US)
44.39 mpg (Imp)
6.36 L/100 km
2.7 gal (US)/100 mi
911.29 Wh/mi
Mostly highway driving. Some treacherous slow winter driving conditions. Red srs light keeps coming on I'll have to reset it. Error code90 - related to a leak in the gas tank, probably a bad gas cap, I'll have to fix that tonight.
2009-12-05 361 mi
580.97 km
9.934 gal (US)
8.27 gal (Imp)
37.6 L
334.78 kWh
36.34 mpg (US)
43.65 mpg (Imp)
6.47 L/100 km
2.75 gal (US)/100 mi
927.37 Wh/mi
Filled up in the morning. In the aft. changed primary oxygen sensor and reset engine light so all error codes are reset. Car seems to run smoother and for some reason less peppy, although I haven't floored it yet I've been easy on the throttle. Only travelled 120km on this fillup so far. Time will tell wether it affects my mileage in a good way or not.
I believe the error code for ignition fault was related to a spark plug cap not pushed all the way on.
- red SRS light came on - reset - It's on again, seems to go on when it's cold out. Quite annoying.
- So far mainly 90-100% highway driving.
2009-12-01 304.5 mi
490.05 km
7.771 gal (US)
6.47 gal (Imp)
29.42 L
261.88 kWh
39.18 mpg (US)
47.06 mpg (Imp)
6 L/100 km
2.55 gal (US)/100 mi
860.03 Wh/mi
Still using basic fuel saving techniques. Still have the O2 sensor and ignition error codes. Engine light still active. Ticking noise from engine (almost like knocking) when cold. I will have to check it out soon.
2009-11-26 347.3 mi
558.93 km
9.946 gal (US)
8.28 gal (Imp)
37.65 L
335.18 kWh
34.92 mpg (US)
41.94 mpg (Imp)
6.74 L/100 km
2.86 gal (US)/100 mi
965.1 Wh/mi
Replaced main speed pickup sensor finally, lockup in transmission now working and D4 flashing stopped. Should notice a good mileage improvement on next fillup.
Mostly highway driving again but heavy low speed traffic. Only typical fuel saving techniques being used - driving below 105km/hr, coasting in N to a stoplight, sometimes coasting downhills, not accelerating hard and keeping constant speeds and minimal braking.
Error codes for main oxygen sensor and ignition not looked at yet, may replace oxy sensor soon.
2009-11-24 296.4 mi
477.01 km
8.25 gal (US)
6.87 gal (Imp)
31.23 L
278.03 kWh
35.93 mpg (US)
43.14 mpg (Imp)
6.55 L/100 km
2.78 gal (US)/100 mi
938.02 Wh/mi
Ordered sensor from Honda. Should be installed tonight. SRS light came on - due to some hard braking - reset it.
All error codes still present
Mostly highway driving at 100 - 105 km/hr (62 -65 mph) should be getting better gas mileage than I am getting. Once lockup is working I should begin to see improvements.
2009-11-19 347.3 mi
558.93 km
10.17 gal (US)
8.47 gal (Imp)
38.5 L
342.73 kWh
34.15 mpg (US)
41 mpg (Imp)
6.89 L/100 km
2.93 gal (US)/100 mi
986.84 Wh/mi
So far all fill-ups are mostly all commute long hwy driving.
- Check engine light still on, all error codes not looked after yet.
- Tonight, I will be able to replace my faulty mainshaft speed sensor and hopefully take care of my flashing D4 lockup issue. Also hope to replace the primary oxygen sensor for the heater malfunction error code 41. Then reset the computer.
2009-11-16 327.5 mi
527.06 km
9.64 gal (US)
8.03 gal (Imp)
36.49 L
324.87 kWh
33.97 mpg (US)
40.78 mpg (Imp)
6.92 L/100 km
2.94 gal (US)/100 mi
991.97 Wh/mi
- Changed tranny oil with Honda ATF and attended to overfull level (3L overfull by previous owner)
- All error codes still not tended to
Finally getting around to troubleshooting lockup
- Check lockup, linear and shift solenoids all okay
- Crankshaft speed sensor - ok
- Mainshaft speed sensor - reading open - could be bad and reason for D4 flashing and lockup not working. Should get to it on the weekend.
2009-11-13 231.2 mi
372.08 km
6.58 gal (US)
5.48 gal (Imp)
24.91 L
221.75 kWh
35.14 mpg (US)
42.19 mpg (Imp)
6.69 L/100 km
2.85 gal (US)/100 mi
959.13 Wh/mi
Filled at almost exactly half tank.
Did check engine error codes and recieved
- Error code 15 ignition output signal fault (could be due to the non-honda cap and rotor)
- Error code 41 primary oxygen sensor heater issue (looks like I might need a new oxygen sensor)
- Tranny lockup still not fixed
2009-11-10 344.8 mi
554.9 km
10.52 gal (US)
8.76 gal (Imp)
39.82 L
354.52 kWh
32.78 mpg (US)
39.36 mpg (Imp)
7.18 L/100 km
3.05 gal (US)/100 mi
1028.19 Wh/mi
Fuel light came on, drove 10km more before refilling.
Tune-up : (all from Canadian Tire) NGK-Vpower sparkplugs, cap and rotor, FRAM air filter, fuel filter, and PCV valve.
- Tranny lockup still not fixed
2009-11-07 329.9 mi
530.92 km
10.07 gal (US)
8.39 gal (Imp)
38.12 L
339.36 kWh
32.76 mpg (US)
39.32 mpg (Imp)
7.18 L/100 km
3.05 gal (US)/100 mi
1028.68 Wh/mi
Starting, bought car.
- Changed oil and oil filter.
- D4 light flashing and check engine light on tranny lockup not working
- Tranny oil looks overfull

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


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