Besides changing driving habits, what else mechanically or otherwise can someone do to increase mpg. I've heard grounding wires can increase mileage, is this true?

I'm getting 25 mpg now.

 

25 mpg in the city? with an auto or stick?

i get 26 in the city and 28 highway, once i got 30 mpg highway. i have a stick

grounding wires will not hurt your mileage, you might actually see a benefit from them in the decrease of throttle delay (because of drive by wire system, the computer gets more juice suppossedley).
i'm not sure that grounding wires would make a noticable difference for MPG

lower the wieght in your car. don't use a/c as much. and drive like a grandma, your MPG should increase a little.

you have to remember that your car is only rated for something like 23 mpg

 

if you install an intake and exhaust you should get better MPG for lowering the exhaust restrictions and putting more air into the engine. Also, you should get more power, not much, but a little bit more.

 

I got 19.7 MPG on my last tank, and it now costs me north of $30 to fillup...

I constantly run my A/C on full blast, but I am very conscientious about keeping the tire pressures correct and I use the cruise control all the time, even in around town driving. All that's left is to not get on the gas so much when accellerating...

Its all stock, with an auto. I'm wondering if there isn't something wrong with my car... only 8500 miles, I'd think its too soon for a real problem just yet...

 

I've heard getting a Turbonator will increase your gas mileage. It doesn't hurt to buy it and try it out...

I know the Turbonator doesn't have a good rep. in the automotive enthusiast community.... I'm just tossing the idea out there... so please don't criticize.

 

decrease weight in the car. take out rear seats, spare tires, passenger seats, carpet, stereo system and cigarette lighter.

decrease rotating mass. get smaller lighter wheels.

 

im getting 25 MPG with full A/C half the time,
it was 103 degrees today!

 

dont buy a injen cold air intake , for some reason it hurts your gas mileage oh wait if i would stop revving to 4k and go back to 3.5k before shifting, and not mash on the gas because of the suction noise, maybe just maybe the gas would be better and not wasted! i got my needle to start moving after filling the tank after about 40 miles because i was being a douchebag tonight doing like 10000000000 in 45s lol)

 

i have intake header and i got 32mpg on a trip that included a/c and uphill / downhill driving

 

Besides what has already been mentioned, make sure your air pressure is set to specs. But make sure you do when tires are COLD (like first thing in the morning before you drive). Most people drive with 2-4 PSI lower than is recommended. This hurts your MPG.

Kevin

 

CAI's ususally decrease your MPG. More air = More fuel.

 

Lots of good ideas.

The main ones are lighten your traveling load.

Lighter, thinner wheels that PROPERLY inflated.

And keep your RPMs down.

There are no magic components that will give you better
gas milage. No magic addidtives that will give you better
gas milage (besides regularly schedualed oil changes).

If there were such magic things, the car manufacturers would
probably have it in the car already, or be recommending them
to you.

Remember, the whole world is looking for better gas milage
right now.

Well, except for the retarded people in the US that fell they
NEED an H2 or Excursion

 

I had the exact opposit experience.... More air results in a slightly more lean A/F ratio producing slightly better gas mileage..... but not if you're at full throttle all the time.

I have the k&n and on half city, and half highway (60-65mph) I got 31mpg..... I used to get 29 (highway only).

 

Weird. I would of thought the opposite. But I guess you can only come to certain conclusions after you test.

 

I get 29-city and like 33 -highway...something like that. I have a stick.

 

if you check your tires after you've 'warmed them up' you'll find them much higher than reccomended pressure(mine's usually 15 pounds higher). do not go by that reading what ever you do. walmart has a cheap air pump that plugs into your cigarette lighter. before you drive anywhere(saturday mornings are a good time) check the pressure and use that handy pump to inflate to reccommended psi(32 front, 29 back).

a low boost on a supercharger actually will increase gas mileage, but not enough to pay for the supercharger. you could put the 1.8 in there? Also not cost effective. or carbon fiber everything and gut the insides. get some specialty titanium wheels and change out all your pulleys for lightweight ones. so, if you have the money, you can redesign the car, but short of that, you're pretty much stuck mechanically, for improving your gas mileage.

 

you must drive too slow

but seriously... what is your average highway speed when you get these numbers? those are awesome numbers.... and do you have any mods?

 

26 mpg, full a/c, redline once every 2-3 days.

 

yeah i have also heard that an intake will increase mpg, just becasue there is more air coming in does not mean there is more fuel being used. i just got my cai and i havent really noticed a difference in mpg yet, but i will post if i see a significant increase/decrease.

 

I have no problem with being wrong.

It's just that it would make more sense that you would get worse gas mileage with a CAI. More air without the proper amount of gas would cause the engine to run lean. Doesnt the ECU have the capability to realize you are running lean and "remap" to the proper A/F ratio? Meaning, dumping in the appropriate amount of gas to match the air.