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View Full Version : Why do I get such bad mileage? someone find me a solution?


sirux
12-15-2010, 06:37 PM
Some people are flaunting they get 30mpg city with their ep3.
My 02 civic sir is lucky to get 20-23 mpg if I do city and thats with shifting at 3,000 rpm and I never go above.
The car only has like 90,000km on it and all scheduled maintance has been done to it.
I'm running Bosch iridium platinum fusion plugs.. should I ditch those?

If I don't find a solution soon I will sell my ep3 and never look back.. I can't afford to drive it at all with $4.00/gallon retarded canadian gas prices.
MBaG
12-15-2010, 06:47 PM
air filter? tire pressure? city driving does get the best of your gas mileage also.
sirux
12-15-2010, 07:09 PM
I've got a AEM v2 intake and tire pressure is a little higher than recommended.
BlkDeathSi
12-15-2010, 07:19 PM
change back to the oem plugs . . years ago a few poeple tried the Bosch plugs like you have and had similar problems. they usually went back to oem and were fine.
sirux
12-15-2010, 07:31 PM
What would be some good OEM plugs for my car?
sirux
12-15-2010, 07:37 PM
Denso what? Iridium?
r6punk
12-15-2010, 07:43 PM
Spark plugs NGK: IZFR6K11 or DENSO: SKJ20DR-M11

I run about 50/50 city/hwy and get 10L/100km every tank.
sirux
12-15-2010, 07:52 PM
What would you recommend? Denso or NGK?
Can't see how it'd make a noticeable MPG difference then the bosch IR fusion plugs.
r6punk
12-15-2010, 08:27 PM
stocks are NGK, i would stick with NGK's but you're right, don't think plugs will make much difference on MPG.
shanewdude
12-16-2010, 05:16 AM
How do you calculate your gas consumption? Maybe you are making a mistake in the math... :shrug:
sirux
12-16-2010, 06:47 AM
My math ain't wrong I use fuelly.com and check my stats in my signature.
codyep3
12-16-2010, 07:19 AM
you bought an EP as a gas saver
sirux
12-16-2010, 09:41 AM
I bought the EP thinking if/when I drove normally it'd give me good gas mileage.
EPSU3
12-16-2010, 10:24 AM
What about your wheel tire set up? That can throw off the calculation a bit. 23-25 isn't bad in the city. I get 25 in town and 33 on the highway.
Hasbro
12-16-2010, 12:32 PM
Drop your shifting to 2,200 to 2,700 rpm. You'll see an improvement. Check out ecomodder.com for more ideas.
T_Virus
12-16-2010, 01:16 PM
weight of rims plus tires? heavy things in ur car?
sirux
12-16-2010, 02:21 PM
Nothing in my car except one pair of shoes.
And stock rims with winter tires.
MBaG
12-16-2010, 02:50 PM
Drop your shifting to 2,200 to 2,700 rpm. You'll see an improvement. Check out ecomodder.com for more ideas.

shifting at 2,200? now that's no fun. if youre really worried about gas mileage, go get a prius!
Hasbro
12-16-2010, 02:52 PM
He didn't stipulate fun.
mugen03
12-16-2010, 02:55 PM
is your alignment off? mine was and i didnt notice it and when i got it fixed i gained more mpg's
Johnny
12-19-2010, 02:55 AM
You might actually want to find the problem before selling it. It might just be your driving style and the bad habits you've picked up.

Reason why I say this is because, and I'll quote you, "My 02 civic sir is lucky to get 20-23 mpg if I do city and thats with shifting at 3,000 rpm and I never go above."
Now I'll ask the question. Why are you shifting at 3k? If you want to save fuel, don't shift at 3k for starters.