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2001 SH Poor Gas Mileage (still!)

 
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Old 05-14-2012, 08:28 PM
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2001 SH Poor Gas Mileage (still!)

Still getting only 24 MPGs combined with normal driving habits 65% highway/35% city...

Here's what I've done since I bought my '01 SH last July (have only put about 4,500 miles on her):

New engine mount
Balance & rotate tires twice (tires are in good shape and are not underinflated)
Alignment
Three oil changes
New spark plugs
Air fuel induction service
New brakes, sanded rotors

Loving the car, but was expecting to get better MPGs out of it. I have to fill up every week and I can only get about 275mi per tank. Normal?

A few have suggested replacing O2 sensors and possibly EGR valve, but won't that run me a pretty penny? Already sunk plenty into my lude! I love her but my TSX was maintenance-free by comparison...
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Last edited by ATLude; 05-14-2012 at 08:31 PM.
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Old 05-14-2012, 09:05 PM
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Re: 2001 SH Poor Gas Mileage (still!)

I was thinking egr valve too.... try cleaning it see if that helps
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Old 05-14-2012, 10:23 PM
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Re: 2001 SH Poor Gas Mileage (still!)

I have a 2000 base (114K) I just bought it in April this year. I have done a lot of work to it including cleaning the EGR valve and I still only get about 23MPG (315 per tank) and that's easy driving. But to be fair that is all city miles.
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Old 05-14-2012, 10:41 PM
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Re: 2001 SH Poor Gas Mileage (still!)

yea I had the same questions when i first got my lude too. Found out its normal to get 23-24mpg city and 26-27 hwy.
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Old 05-14-2012, 11:41 PM
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Re: 2001 SH Poor Gas Mileage (still!)

its an 11 year old car; its not going to perform the same as it did brand new. just keep up with maintenance and be happy with what you get
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Old 05-15-2012, 12:56 AM
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Re: 2001 SH Poor Gas Mileage (still!)

dirty fuel pump/filter?
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Old 05-15-2012, 01:10 AM
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Re: 2001 SH Poor Gas Mileage (still!)

23-24mpg in the city is pretty good... it's not a D series engine....
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Old 05-15-2012, 03:08 AM
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Re: 2001 SH Poor Gas Mileage (still!)

Honda prelude mileage problem
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Old 05-15-2012, 06:09 AM
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Re: 2001 SH Poor Gas Mileage (still!)

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Originally Posted by T.E.L. View Post
23-24mpg in the city is pretty good... it's not a D series engine....
thats for sure, I get like 26-27 regularly in my Lude but like 40 in my civic with the D15
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Old 05-15-2012, 07:07 AM
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Re: 2001 SH Poor Gas Mileage (still!)

Thanks folks. Agree that it seems normal, especially since it's 11 years old. Forget that technology changes that much in the new cars :)
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Old 05-15-2012, 09:53 AM
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Re: 2001 SH Poor Gas Mileage (still!)

I get 27 city/highway in my 4th gen...h22a1 with 185k miles and also burn a quart of oil every 250 miles.

I think you should be able to get better than 24.

What exactly was replaced with the air/fuel induction service?
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Old 05-15-2012, 11:28 AM
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Re: 2001 SH Poor Gas Mileage (still!)

That sounds around the norm for us.
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Old 05-15-2012, 10:29 PM
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Re: 2001 SH Poor Gas Mileage (still!)

nothing replaced in the air fuel induction service, just cleaned out...

I'm thinking about replacing both O2 sensors, which will likely help...
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Old 05-16-2012, 07:26 AM
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Re: 2001 SH Poor Gas Mileage (still!)

You should replace your fuel filter.
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Old 06-03-2012, 01:38 AM
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Re: 2001 SH Poor Gas Mileage (still!)

I have 01 SH and i get 22 city and 27 highway. After checking the specs this is the range it read on the sticker when new. Thats the correct MPG.
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Old 06-03-2012, 09:44 AM
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Re: 2001 SH Poor Gas Mileage (still!)

US 24mpg is fairly exceptable but you should be able to get 30 or so with highway driving, I get US 30mpg half highway and half normal road even with 10+ vtecs.

People never tend to start with the first thing, your foot! if you want good fuel consumption don't go over 3k and try to rev to 2.5k before the next gear and don't vtec!

but yeah you've done your plugs so start with egr valve, leads, distributor cap and rotor, fuel filter. O2 sensor probs would bring up codes, someone correct me if im wrong.
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Old 06-06-2012, 11:55 PM
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Re: 2001 SH Poor Gas Mileage (still!)

Dang after I read this I went to check out how many mpg I'm getting and guess what?... 13 mpg that's pretty messed up. Worse than my lexus rx. I don't know if i'm doing my calculations wrong or is there something wrong with my car. I have an SH too.
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Old 06-07-2012, 08:05 PM
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Re: 2001 SH Poor Gas Mileage (still!)

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Originally Posted by huykenshi View Post
Dang after I read this I went to check out how many mpg I'm getting and guess what?... 13 mpg that's pretty messed up. Worse than my lexus rx. I don't know if i'm doing my calculations wrong or is there something wrong with my car. I have an SH too.
Thats ****ed lol, Is the car misfiring or driving not as smooth as it should?
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Old 06-08-2012, 02:08 AM
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Re: 2001 SH Poor Gas Mileage (still!)

It doesn't misfire but i notice that the clutch is hard to control smoothly but running wise it's doing well. Today i drove around for a while and i smelled a very strong gas odor. I checked my EGR valve area and there was nothing. I recently scraped my down pipe as my car is lowered i dont know if that has anything to do with it. Still investigating.
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Old 06-08-2012, 02:56 AM
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Re: 2001 SH Poor Gas Mileage (still!)

i got a 97 sh w 101,000 on it and i get 29 mpg if i drive granny style on mostly highways If i drive somewhat aggresively 70% highway and 30% in town im getting 24-25mpg
I could probably get 350-360 mi/ tank. I looked on here and some guys said stock they where getting 350-380 mi pre tank
Remember that the tank is 15.9 Gal the gas gauge just goes way way way down before ur out. Ive read that your low fule light comes on with 2.5 gal. left. Ihavent run my car out of gas yet but the gauge will be reading below the E line and going down to the E and its still goin.

I wouldntworry about mpg so much. Mpg is not a major factor in a vehicle being a good car to me. Ifyou are that worried buy a prius or a festiva. With a prelude you have Quality, performance, and economy. What more can u ask for. Most sport cars dont average 25 mpgs unless they're new.
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Old 06-08-2012, 04:27 PM
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Re: 2001 SH Poor Gas Mileage (still!)

Try changing your air filter too
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Old 06-10-2012, 12:37 AM
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Re: 2001 SH Poor Gas Mileage (still!)

I got a new aem cai not long ago and came with a new air filter so that couldn't be the problem. I had it up on a hoist today and I couldn't pin point where the smell is coming from. It's not from the gas tank nor the fuel lines.
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Old 06-10-2012, 12:40 AM
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Re: 2001 SH Poor Gas Mileage (still!)

Shoot bro, Im down to 20-21 after my last oil change...I don't know what it is, but ever since I've been having to fill up every 220 miles.
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Old 06-10-2012, 01:09 AM
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Re: 2001 SH Poor Gas Mileage (still!)

Hey WesternPrelude, I'm having the same mpg as you. Filling up at about 220 miles a tank, filling in about 10.5-12.5 gallons a fill up. Averages about from 19.5-22 mpg.
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Old 06-10-2012, 01:11 AM
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Re: 2001 SH Poor Gas Mileage (still!)

What kind of Oil are you using? And have you ever gotten better than that? This is the first time its been this bad in the 2 1/2 years I've had her.
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Old 06-13-2012, 08:47 PM
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Re: 2001 SH Poor Gas Mileage (still!)

Yea I have to fill up about every 250-275 miles. About 10.75-11.5 gallons. Using Mobil1
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Old 06-13-2012, 10:59 PM
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Re: 2001 SH Poor Gas Mileage (still!)

Yeah...ATL that's how long I used to go on a good tank. now it seems like 220 is a good tank.
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