Hows My 99 Civic's Fuel Economy? And ways to Improve??

[royal]

I have been testing my civic for 2 ful gas tanks and i have come up woth 12km/L... so 12km for every liter in my car. This is for city driving and highway driving was about 12.8 - 13 km/L.

SO just wanted to know is this normal or below average??

THanks.

Also some ways to improve?

I have seen some kind of stuff like this:

http://cgi.ebay.ca/HONDA-ACCORD-CIVI...ayphotohosting

http://cgi.ebay.ca/Honda-Civic-Gas-F...QQcmdZViewItem

I know most of this stuff is usually scams.. but any of you guys ever tried this stuff?

Thanks.

[gordholio]

I would get a tuneup. Change oil and filter and spark plugs.
Check your tires for proper inflation and tread wear - rotate tires if necessary.
It's about 36 mpg and if the car is an automatic, it's about right (maybe squeeze another 2 mpg out of it).
If it's a standard, could be getting about 5 mpg more.
If you are driving in the city a lot, your mileage will be lower than the optimum.

Here are some more tips:

http://www.mpgplus.com/

[AzNCrAzYcOoLeR]

12km /L is good,
my civic 06 only does 425km / 45 L , that works out 9.5km/L

[radeonboy]

PLEASE do NOT try those garbage ebay scams.

[radeonboy]

Ways to improve.

1. Run higher tire pressure. Give it around 36 for the fronts, and 33 for the rear.

2. Find a speed where your engine runs at the lowest RPM. For example, when I run 70-80kmh, my car can run around 1600-1700RPM.

3. Use cruise control for above if you can find a sweet spot.

4. Tuneup: Fuel filter, air filter, change oil, spark plugs, spark plug wires, check ignition timing and you can "******" the timing a few to give you better mileage.

Thats all I can think of. Obviously do your homework, and you should be doing better.

[royal]

I would get a tuneup. Change oil and filter and spark plugs.
Check your tires for proper inflation and tread wear - rotate tires if necessary.
It's about 36 mpg and if the car is an automatic, it's about right (maybe squeeze another 2 mpg out of it).
If it's a standard, could be getting about 5 mpg more.
If you are driving in the city a lot, your mileage will be lower than the optimum.

Here are some more tips:

http://www.mpgplus.com/

Yup My car is Auto, sorry forgot to mention. One thing i know i shoud get changed ASAP is the tires in rear (one michellin (thread somthing) and one goodyear) and fronts have 2 michellin hydroedges. i know that effect drive train.

and yup mostly city driving .. ocasional highway

12km /L is good,
my civic 06 only does 425km / 45 L , that works out 9.5km/L

lol i am relliefed, but shouldnt the new ones be better? or is you car still in the break-in stage?

PLEASE do NOT try those garbage ebay scams.

i know its a scam..but i was jsut wondering if any1 tired and what are results?

[radeonboy]

i know its a scam..but i was jsut wondering if any1 tired and what are results?

Argh? They don't work period. Consumer Reports tested all the ebay garbage and they didnt know squat. Why would you want to know more about these when you already know they dont do anything?? Don't tell me you're gonna try it out, sounds like you might just try it out.

[radeonboy]

One more tip I forgot to add.

- Keep your car light as possible! Throw all useless junk out of your car, and your trunk. The lighter the car is, the better.

[bunga]

If you ever work in the auto industry, it's pretty much like clockwork when you get people concerned about their fuel economy. As soon as the temperature starts getting down to zero you'll get customers complaining of their fuel economy. That lasts throughout the winter, and as soon as the weather starts warming up, no one complains.

you're getting about 28mpg which isn't too bad. Sure you can spend money on a major tune up (plugs, cap/rotor, fuel filter, air filter) which definitely isn't a bad idea if you haven't had one in a while, won't make a huge difference in your fuel economy though

realistically, unless you're car maintenance has been completely neglected and the car is running like garbage you're not likely to see a noticeable difference in fuel economy. This is absolutely the worst time to monitor fuel economy and unfortunately it is when most people pay attention to it. With the weather cold your motor is going to use up more gas. Look at it this way, when your car is started from a dead cold, the ecu is going to run the car rich (more gas in the air/fuel mixture) so that it will heat up the catalytic converter quicker and produce fewer emissions. Those that idle their car to warm it up before they get in it will see the biggest drop in fuel economy. The little 1.5 or 1.6l motor in your Civic will never fully warm up if it's -10 outside just by idleing, so all that time the motor is running rich and using up more gas. Not to mention that during the winter most people go on shorter trips and of course your motor cools down very quickly when shut off so that when you start it back up it's using up more gas again.

best fuel economy advice is to idle your car as little as possible when cold. When you start it up from a dead cold, let it idle for maybe half a minute and then start driving. Also try to take as few short trips as possible if not needed. This is going to make the biggest difference in your fuel economy, still don't expect to meet the specified fuel economy numbers with this weather

or you can check your tires daily making sure that they are within half a psi of what they should be, spend money on a tune up, and watch your mileage like a hawk, maybe you'll get an extra half a mile per gallon.

[ids748]

SOMETHING must be horribly wrong with my mom's 99 chic then. I got 508KM to the last tank filled 43.0L........thats about 8.46 KM/L

**** something is wrong for sure. Does anyone know if an O2 sensor at the CAT would fix this?

[bunga]

ummm, where do you learn math from?

based on your own numbers, if you travelled 508km for 43L, you did just under 12km/l, or in more standard terms 8.3L/100km or 28mpg, exact same mileage as the op

definitely something wrong, but I'm not quite sure it's the car

SOMETHING must be horribly wrong with my mom's 99 chic then. I got 508KM to the last tank filled 43.0L........thats about 8.46 KM/L

**** something is wrong for sure. Does anyone know if an O2 sensor at the CAT would fix this?

[ids748]

^^^****, i did the math right but ya it's for L/100 km.

Ya but we use to get 550+ to a tank with lower fill's and so i know something is wrong.

[belfour]

12km /L is good,
my civic 06 only does 425km / 45 L , that works out 9.5km/L

10.6 L/100km is horrible for 06 civic.

For me (06 civic auto 4dr) my max is 7.6 L/100km (almost all city) and lowest is 6.2L/100km (all highway 110-120km/h).

[bunga]

reread my post regarding cold weather

it's impossible to accurately judge fuel efficiency this time of year, check again in the spring

[Chief]

Argh? They don't work period. Consumer Reports tested all the ebay garbage and they didnt know squat. Why would you want to know more about these when you already know they dont do anything?? Don't tell me you're gonna try it out, sounds like you might just try it out.

oh come on, its gotta work, the POWER of MAGNETS means better fuel efficency, it makes perfect sense