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Old 04-12-2010, 11:01 AM   #1
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Average MPG

What r u guys averaging on a tank of gas? I just fixed a header leak, bad o2 sensor, new plugs, and cleaned the air filter. i have full exhaust, pulley, cai, and 93 octane tune. Im wondering what i should be getting cause so far it doesnt seem like im doing any better. and no i dont drive stupidly(anymore). and should i look into an 87 tune to somehow get better mileage? ive heard i might only get 1mpg difference at most. also, does the o/r h make u get that worse of mileage?
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Old 04-12-2010, 11:10 AM   #2
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Re: Average MPG

My comment about the 1 mph at most was assuming you stayed with a 93 tune but went for a "gas mileage 93 tune". With an 87 tune, you might could gain 2 if you're lucky.

What is killing you is you are driving in the city most of the time and you have an automatic. Those two things alone are a big reason you would see lower mpgs.

The things you fixed really wouldn't change your mpgs in the city much if at all. Baton Rouge traffic is not conducive to good mpg. If you're looking to save money, get the 87 tune so fill ups are cheaper.
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Old 04-12-2010, 11:14 AM   #3
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Re: Average MPG

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My comment about the 1 mph at most was assuming you stayed with a 93 tune but went for a "gas mileage 93 tune". With an 87 tune, you might could gain 2 if you're lucky.

What is killing you is you are driving in the city most of the time and you have an automatic. Those two things alone are a big reason you would see lower mpgs.

The things you fixed really wouldn't change your mpgs in the city much if at all. Baton Rouge traffic is not conducive to good mpg. If you're looking to save money, get the 87 tune so fill ups are cheaper.
or im probably gonna look to see about just taking off the tune for now and just turning off the back two sensors. im really not worried about power anymore and have grown out of that race at every stop light thing.
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Old 04-12-2010, 11:19 AM   #4
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Re: Average MPG

Did you change out the 4.10's? I forgot where you were with that?
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Old 04-12-2010, 05:59 PM   #5
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Re: Average MPG

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Did you change out the 4.10's? I forgot where you were with that?
yes sir. 4.10s and posi out. definately miss them though especially with the terrible bottom end power.
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Old 04-12-2010, 09:16 PM   #6
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Re: Average MPG

29 MPG when it was stock(mostly highway) Im going to figure out what it is with the new exhaust and tune.
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Old 04-12-2010, 09:55 PM   #7
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Re: Average MPG

on average for a tank of gas i get close to 250 miles. sometimes less depending on how i drive.
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Old 04-12-2010, 10:20 PM   #8
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Re: Average MPG

You could try reducing weight but that would take some time and money that might cost more than the gas unless your gonna have the car for a long time
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Old 04-12-2010, 10:46 PM   #9
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Re: Average MPG

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You could try reducing weight but that would take some time and money that might cost more than the gas unless your gonna have the car for a long time
nah i have a rear seat delete but thats all. not really looking into anything drastic.
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Old 04-13-2010, 09:03 PM   #10
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Re: Average MPG

Lately my MPG's have been off.. I'm bone stock and usually get 17-18.5 combined with about 80% Highway, 20% city on a tank about 250 miles. The average fill up is between 13-15 gallons. Lately it's been 215-220. I've got something going on with the exhaust-- I can't remember exactly. Ford said they had to Flash the computer before they can replace the part. I didn't pay attention since it was all covered by warranty. It's going bk to the DLR and I'll let you know what it is.
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Old 04-14-2010, 11:40 AM   #11
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Re: Average MPG

The absolute most that I have every seen out of my car is about 280 miles per 1 tank of gas and it was all highway across the sunshine state last may. I set cruise control at around 70mph and that was it which equated to about 22.5mpg. On average I get about 20-21 mpg and do about 50:50 highway to city driving. Most of the time I also get about 250 miles to a tank of gas. I have shorty headers, off-road H-pipe, & flowmaster mufflers + pulley + CAI, but regardless I never saw and increase in MPG. If you want that I suppose you need to buy another car or just wait until the 2011 comes out which I would hope someone would post in here about how many mpg they are really getting instead of the projected 30mpg that ford states.
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Old 04-14-2010, 11:57 AM   #12
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Re: Average MPG

I peaked just recently at nearly 25 MPG! Filled the tank up with 11.xxx gallons, had >300 miles on the odometer and could have kept going. I know I will never see that again.
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Old 04-14-2010, 12:50 PM   #13
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Re: Average MPG

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I peaked just recently at nearly 25 MPG! Filled the tank up with 11.xxx gallons, had >300 miles on the odometer and could have kept going. I know I will never see that again.

Perhaps you forgot to reset your odometer from the previous trip....LOL j/k...thats awesome. 300 on 11-12 gallons. hell yea
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Old 04-14-2010, 01:49 PM   #14
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Re: Average MPG

I've seen 300 a couple times before.
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Old 04-14-2010, 04:03 PM   #15
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Re: Average MPG

try 60-65 instead of 70+ on the highway it will do wonders for your milage.
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Old 04-14-2010, 04:54 PM   #16
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Re: Average MPG

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try 60-65 instead of 70+ on the highway it will do wonders for your milage.
60-65 is too slow for FL driving....ppl run you off the road here, but its all good thats why we have our CWP's
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Old 04-14-2010, 05:39 PM   #17
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Re: Average MPG

Believe me Ive seen speeds well over 70 even bouncing off the speed limiterfrom time to time (maxing about 115-120 loosing power and going right back up) but when gas prices go up i lay off.
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Old 04-20-2010, 01:06 PM   #18
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Re: Average MPG

i've seen over 400 on mine, my record mpg is 30/31 on a roadtrip

I average 25-26 cruising at 80mpg (or at least I try.. sometimes its more like 85+ :X )

also there is another thread not that long ago on this
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Old 04-21-2010, 03:11 PM   #19
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Re: Average MPG

I get about 24 mpg (depending on how bad i beat on it) but i drive mostly highway..
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Old 04-21-2010, 05:33 PM   #20
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Re: Average MPG

i get somewhere between 350-400 per tank... and i only put in about 10-12 gallons.

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Old 04-21-2010, 09:33 PM   #21
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Re: Average MPG

With all my mods I am up to 29 mpg.
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