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For the past little while, my gas mileage has been absolutely horrible...

I originally thought it was because of under-inflated tires, or that it was winter tires... nope. I presume it's a combination of everything:

- more use of lights (i.e. full low beam, and fogs)
- winter tires
- reving a bit more, since slipping
- alot more HEAT!
- defog (using AC), rear refroster
- using wipers more (hey, it DOES use electricity )

I'm getting like 351.5km for my tank! I just calculated it at 10.6L/100km... WTF???

I'm at about 80,000km in my EL... automatic.

To top it off, my friggen toes are F R E E Z I N G! How the hell do you guys warm them piggies?! I'm thinking of mounting a compact heater in both front leg areas!!! Damned Honda never got the foot well heating ducts right! (Back in the day, my 2000 Honda CIvic was perfectly fine)

 
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Mine has still been constant around 24 miles/gallon. It's really bad. Most people get around 30 at least.

The defogger takes up alot of power, as do the ventination and lights.

 
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hmm... i have regular gas mileage around 450 a tank..~_~
at 66,000 and i just changed my alternator ..=(

 
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the whole feet cold thing....there have been posts last winter and stuff about how civics r bad at heating feet...some model flaw that just doesnt work quite that welll...let your car warm up...leave it on JUST heat.. (windshield defog) then once warm air is coming out like of the side vents turn it to JUST FEET as long as ur windshield and windows arent foggy...blast it and itll be warm..but then the hot air comes up right in ur face and makes u feel completely sick (well i hate tons of hot air on me when im already warm) but yah thats wat i do! hahaha

i havent noticed my gas mileage being bad though...but i donno....i expected it to drop faster this time from going to a parking lot one night and having some fun...lots of revving in low gear when pulling a good donut = more gas usage.... not much tho i donno...

 
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i had mine changed at under 30k..

mileage always sux during the winter, it'll correct itself come spring tho once the weather warms up..everyone tends to let their cars warm up longer etc..
i'm getting about 500 per now down from 525-550, but i think that's just cuz i use the remote starter a lot

 
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i am down from 600km/tank to 490-500km/tank (not the civic, it's my GTI)
damn cold weather and stuck in traffics

 
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its the fact that u r stopped in traffic more, you rev and spin more. and dont forget they we leave our cars on for like 10 min just to warm up, that takes alot of gas when u factor in doing it everyday. i dont think electrical stuff causes more fuel to be used.

 
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idle and turn yer rear defrost on and off..
you should notice a difference..
anything that puts a strain/drain on the engine mechanically or electrically will burn more fuel..that's why they make over-drive pulleys..

 
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Winter driving always takes a toll on gas mileage even when the roads are clear, winter tires are a byatch!

Cold running, warming up, all the ACC's on all the time, wrong oil for the colder weather and so on..

 
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But under-drive pulleys reduce mechanical strain on the engine by spinning accessory pulleys slower. I don't see how electrical use could impact fuel economy since the alternator is always spinning regardless of how much power you use. And heating doesn't use more fuel either. The heater uses waste heat from the engine.

 
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i have about 53000 on my car and i'm still running at about 450 to 460 km with a tank of gas....

 
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Colder oil would be a factor, spinning more, letting the car warm up would all be factors.

 
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turn on yer heater so that the a/c kicks in (defrost modes)..

what happens??

k, turn if to a setting w/o defrost..

what happens??

turn off yer fan..

what happens??

and exactly what i meant regarding under-drive pulleys..
they reduce the strain on yer engine..
people put them on to re-coup some of the power lost "not" having them..
less strain on the motor, more horse power..
OR less strain, more effeciency..

 
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well to be honest...i think the passenger side have better feet warming heat ducts than the driver's side. cuase i was sick for like a week so i let my girl drive me around ... so i get to experience the heat from the passenger side

 
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My fuel milege for:
This is average fuel mileage that I have automatically calculated when I add a fuel purchase to my online fuel logbook
2003
March 34 mpg
APril 34 mpg
May 31 mpg
June 38 mpg
July 36 mpg
August 38 mpg
Sept 37 mpg
Oct 33 mpg
Nov 35 mpg
Dec 41 mpg

In December... I received my hypervoltage and hyperground system and installed them.. as a result.. my fuel mileage has gone way up.

 
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wow, a little organized there Kent?

 
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Dont turbocharge your car if your worried about gas mileage...

 
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I do about 350 highway Km's on a tank and about 450 Km's in the city...

 
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The website does it for me

I just sorta read the graphs and wrote what I saw

 
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DragonAce- Were you trying to prove something to me? It seems like it, except you don't seem to understand the concepts.

Let me break it down for you, the a/c is not an electrically driven accessory...so it uses the engine to power the compressor. The engine uses more fuel when it's on than when it's off. This may be what is confusing you. The rear window defroster, the fan etc... use THE BATTERY to run (that's why they work when the ENGINE IS OFF). Are you going to try to tell me they are straining the engine when it isn't even running...

 
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^^werd

 
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Correct me if I'm wrong...

Drawing current on the battery puts strain on the alternator... If the idle speed of the engine or cruising speed of the engine is enough to charge the battery with the load that is required, no additional fuel is required to operate such features.. however, if the load you're requesting is a constant 1000 W... your alternator won't handle that at idle speed and will have a lot of strain because it is requesting that energy replaced from the alternator.

So.... ONLY if you're requesting more energy from the battery than the alternator is supplying it with, will there be an additional fuel consumption.

 
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My mileage is slightly worse these days (obviously due to the increased use of the heater), but not that far off from where it would normally be. Then again, most of my mileage is in the city driving in heavy traffic to and from work so its always crappy.

 
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winter tires aren't too friendly for fuel consumption too

 
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I run at 450 a tank, with the new kit after snow storm I blow more snow than I go over, that's gotta suck. Or everytime you put a little more gas to stop your tires from spinning and get grip. I don't have winter tires

 
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so yer telling me that once you pull the battery that you'll no longer have any rear defrost or fan even while the engine is running?? the battery is used as a backup..one: to start the engine cuz, well it's hard to start a car w/o the power supplied by a spinning alternator and two: to provide power in excess of what the alternator can supply on short term basis only..

 
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I'm driving about 550 a gas tank through winter. That's probably since I drive 99% of the time on the highway. The highest I've ever gone was about 650 or so during the summer.

 
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If you set your boost 0 PSI, i.e. no boost, wouldn't you just be driving like 'normal'??

 
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Indeed, during winter time, my car's gas mileage ain't good.

For me, I just hate driving in winter, but then I needed to, everyday, at least 40km.

argh..

 
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furball: for my car i dont have the boost controller so i can't turn off my boost at all..it is always on 8psi
i dont know if redvic has a controller himself