The gas is KILLING me

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Old Dec 17, 2006 | 09:20 AM
  #1  
SleekCLS's Avatar
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The gas is KILLING me

hey, ok, so heres an update, i have gotten a remote starter installed, and every night i leave it on 70 with ac off, and as i start the car for 7 minutes before i leave the house NOT every morning, maybe 2 days a week, i have noticed my MPG drop down to 240 a tank, but, one week i didnt remote start at all and i got 232! can it be my spark plugs and wires? or what? why is gas so bad all of a suddent i was getting 285.
Thanks for your help any measures i can tak, anywhere i can get it tuned?
Thanks ALL HELP is appreciated.
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Old Dec 17, 2006 | 09:51 AM
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YeuEmMaiMai's Avatar
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fuel economy will go down in colder weather. could be excessive foot in throttle. check your air filter...............
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Old Dec 17, 2006 | 09:52 AM
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P.S. Bad 02 sensors can cause decrease in milage without tripping a CEL as well
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Old Dec 17, 2006 | 10:28 AM
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Wait...I just blacked out
 
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I would love to get 285.....I'm a student at UF getting around 240 per tank each time. ugh.
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Old Dec 17, 2006 | 10:48 AM
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Could be that you didn't fill the tank up as much as you usually do.

Originally Posted by GreenMonster
My guess is that you didn't fill it up all the way last time you tanked up... that and maybe you've been in vtec too much lately... Fill it up, and see if it does it again... Then you can start complaining

I've got every gas stop I've ever made w/ my CLS in a log book, so I can accurately check on fuel economy... It's been about 22-23 mpg for the last 4 years (52K miles)... Making assumptions based on one tank of gas doesn't work... Some tanks I get less mileage then others, but overall it all averages out.

Don't they teach you guys Scientific Method in school anymore ?? http://en.wikipedia.org/wiki/Scientific_method

We need repeatable, observable, empirical evidence before we can make judgement...

Oh, maybe you just wanted some WAG's (wild ass guesses) ??

edit: I've noticed that alot of people don't even know how to calculate gas mileage correctly...
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Old Dec 17, 2006 | 11:59 AM
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AcuracltypeS03's Avatar
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Check ur tires
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Old Dec 17, 2006 | 05:05 PM
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Could be winter gas.
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Old Dec 17, 2006 | 08:09 PM
  #8  
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cold weather effects mileage. Along with the winter blends of fuel. I noticed about a 40 mile to a tank reduction now that its colder out, and the winter blends are being used. (down to around 370-400miles) all hwy where im typically at 420ish
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Old Dec 17, 2006 | 09:50 PM
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yea cold weather = bad mpg
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Old Dec 17, 2006 | 10:11 PM
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StypeCL's Avatar
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I get anywhere from 320 - 380 miles per tank.
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Old Dec 17, 2006 | 10:16 PM
  #11  
pits200's Avatar
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Also, how are you determining what a full tank is. I think when the light comes on, we still have a shitload of gas remaining. I think its something like 3 gallons remaining when the light comes on. So depending on when you fill, you can get a 30-50 mile variance.

In addition, the CL-S is a perfect highway cruiser. I get about 30MPG, but when you gotta get that fat end stopping and starting all the time in the city, I drop all the way down to about 21mpg.
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Old Dec 17, 2006 | 10:35 PM
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FiveLiterCheater's Avatar
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wow...I'd be lucky if i get 200 miles per tank w/ my TL
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Old Dec 18, 2006 | 07:56 AM
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Originally Posted by JJaber06
wow...I'd be lucky if i get 200 miles per tank w/ my TL
Damn, that low.

With my CL, I always got between 230 and about 260 miles per tank when I was doing a lot of city driving. I got up to about 450 doing all high way. And I checked my mileage every time I filled up.

I would check your air filter and plugs. Also, I take it you're using premium, correct?
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Old Dec 18, 2006 | 09:57 AM
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SleekCLS's Avatar
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Ok to address a few,

1 I have BRAND new tires, at 32 psi each

2- i fill up a full tank with 15.5 gallons, car turns off at 16.1.

3- FULL tank everytime.

MAYBE it is bad o2 sensors, first il check the plugs, anyhow, can we replace o2s ourselves? or is it a LONG complicated process?
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Old Dec 18, 2006 | 10:00 AM
  #15  
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btw, if im at 20 mpg wich the acura promises what 21-29? i SHOULD get 300 to a tank but NOOO right now i just 243 up till the light and pushed to its limit 260. i use premium ONLY, air filter is only 6k miles old, i just bought the car. hmm...
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Old Dec 18, 2006 | 10:00 AM
  #16  
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SORRY for 3 posts, i DO NOT have jack rabbit starts.
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Old Dec 18, 2006 | 10:22 AM
  #17  
redsly's Avatar
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Are the "Brand New" tires over sized?
Bigger tires will cause lower miles since you have a larger diameter to cover the same distance...
The lowest mileage I have gotten to a tank was around 225 and that was when I had my car idled for about 4-5 hours (was using a power inverter off the battery to work on my other car).
I typically would get between 18-21 mpg with highway and city driving before my AEM CAI. Now I get between 22-25 mixed.
Also, there are more additives in the gas during the winter and people always complain about the low mileage we get with these cars during the winter...

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