if you wanna see your numbers improve, drive like a granny...nice and slow

 

^^ true...but I bought the Si because I wanted to do the exact opposite and still get decent mileage.

 

It's a trade off. You could drive a hybrid flat out and you won't get as great of gas mileage if you drove like a senior citizen. Even thought it's a honda, its not a gas sipper like the dx/lx/ex etc especially when if you're driving more "aggressively."

 

This winter I've been getting about 16-20 (lead foot and warm-up time every time I drive) but in the summer I get about 20 city and 30-35 highway. I have a CAI but I used to just have the stock intake disconnected from the resonator and I got about the same mileage. Like 07FG2 said, drive like a granny and your MPG will be better. BTW, my old 92 Civic w/ vtec head swap, 10.5:1 pistons running premium once got 42 MPG driving around the island in Hawaii... I drove it like an old fart that day to see how good my MPG would get.

 

I don't drive like a granny, I get up to speed quick. I just look way ahead and lift off the gas (while staying in gear) way early when I come up on traffic or see a red light. The car consumes zero gas as in the injectors shut off when you are decelerating. So anytime you see you have to come to a stop or slow down you just lift early and coast in gear. When you see a red light ahead if you can slow down instead of stop that helps a lot. When going down hills lift as you're going down and don't juice it going up just maintain speed/momentum.

I see people acelerating from stop light to stop light when if you pay more attention you can time the lights to not have to stop as much. It takes practice and being aware. Not driving like a crazed beast or mindless drone light to light.

Try it on the next tank and let me know if it helps your milage. I taught my wife and it works for her.

 

If you drive like a bat out of hell 90% of the time of course your MPG's are gonna be ****. NOt only do you drive like that 90% of the time you drive alot of city driving. Stop and go + vtakk = shitty MPG's.

Drive below vtak preferably shifting at 3k and you should see higher numbers. Even if you do it half the time then youll see better mpg's.

 

vtak...vtach...vtic...what was that honda valve timing and lift electronic control thing called again???

 

http://www.youtube.com/watch?v=dLrRv...eature=related haha

 

^^wow^^

 

How are you measuring your fuel economy fist of all. If you are going by the gauge and eye balling your trip meter this is definitely the wrong way to go about doing it.

 

Well i'd assume so, I usually just fill up, check where how many miles I was at, and then near the end of the tank I guesstimate...

Also. Maybe it being winter has something to do with it. Ya know like theres always the stop and go factor, and then usually in the morning when i start up, the cars gotta take a few mins to warm up...and then theres always the times when i'll drive somewhere, stay there for a few hours, then leave...and then the cars gotta warm up again...so idk I guess it being Winter could be one of the issues.

 

I get about 26mpg(city). and 34mpg on hwy with cruse on.

 

x2

 

With mileage you reported and the aggressive driving you are reporting I'd say you are right in line where you should be and you DON"T have any problems.

Ultimately if you are worried about fuel economy you picked the wrong civic

 

Honestly im not worried about fuel economy at all... Im just kinda wondering if other Civic Si's were getting around the same area because i just wanted to make sure it wasn't a car issue. Obviously, its a driver thing

 

it's always the driver not the car....I always get highway MPG on my cars....09 Si sedan at 29-30MPG and retired 01 civic EX coupe 37-39MPG

 

You might always get highway MPG if your always driving on a highway.

 

i havnt been able to break 27 mpg but then again im a fairly aggressive driver and drive my car how i want to but honestly 27 mpg in half city half highway drivin isnt bad to me anyways.

 

mines gone now but I always seemed to get terrible city mpg and great highway