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Old 09-05-2013, 01:13 PM   #1
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MPG?

What MPG do you get with your 4.0? And what improved it?

Mine went as low as 10 last winter but around 16 in general. Nothing (tuner, CAI, exhaust, headers, throttle body spacer) improved it yet as far as i can see.
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Old 09-05-2013, 02:11 PM   #2
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ive got about the same stuff as you & I only see 18-20 mpgs

mines 5 speed idk about yours
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Old 09-05-2013, 02:16 PM   #3
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ive got about the same stuff as you & I only see 18-20 mpgs

mines 5 speed idk about yours
that's sone great mpg. mine only downhill might get your mpg
i've got the automatic and that might be a reason
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Old 09-05-2013, 02:19 PM   #4
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do you stay on one tune or switch it up a lot? also do you manually calculate your mileage or go by the cars computer mileage? lol I stay on my 93 octane hybrid tune for the most part. I would think changing tunes & octanes a lot might screw with the system
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Old 09-05-2013, 02:26 PM   #5
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no, i kept my 91 octane tune since april but my battery goes dead often and that might be similar. i would go 93 too but in Europe (where i'm from) gas is at least twice the price in the US so i don't bother. i use the car's mpg calculator but i think it should be quite accurate. by the way, is your city hilly?
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Old 09-05-2013, 02:28 PM   #6
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I get about 300-310 miles out of a tank of gas, so that's 19-22mpg depending on how I drive. And so far my car is bone stock.

Edit: also its a manual.
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Old 09-05-2013, 02:34 PM   #7
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I get about 300-310 miles out of a tank of gas, so that's 19-22mpg depending on how I drive. And so far my car is bone stock.

Edit: also its a manual.
nice many mods usually improve mpg so i guess now there might be something wrong with mine
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Old 09-05-2013, 03:14 PM   #8
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not very many hills where im at in texas lol
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Old 09-05-2013, 04:35 PM   #9
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The dash says average of 28 to 30 for me I put in cruise control and go to work lowest its ever said is 19. Dont know how accurate it is
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Old 09-05-2013, 04:43 PM   #10
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Best I ever got was 28 mpg. I drove from san antonio to houston and when I got to houston I had to do 55 through the city and that's when It was best
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Old 09-05-2013, 04:45 PM   #11
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these are pretty high numbers. highest i've ever got was 25. any ideas why would mine be so greedy?
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Old 09-05-2013, 04:48 PM   #12
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these are pretty high numbers. highest i've ever got was 25. any ideas why would mine be so greedy?
Do you do regular maintanence? Sea foam it?
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Old 09-05-2013, 05:09 PM   #13
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Do you do regular maintanence? Sea foam it?
i do a lot. is sea foam something like an oil additive?
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Old 09-05-2013, 06:09 PM   #14
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I just purchased a 2009 V6. i also get about 11-13 in city. no hills. lots of stoplights. clean filter. 87 street tune by bama. and no other added mods as far as i know if.. frustrating because i should be getting much better. anybody have any advice?
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Old 09-05-2013, 06:40 PM   #15
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i do a lot. is sea foam something like an oil additive?
fuel treatment/ injector cleaner

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I just purchased a 2009 V6. i also get about 11-13 in city. no hills. lots of stoplights. clean filter. 87 street tune by bama. and no other added mods as far as i know if.. frustrating because i should be getting much better. anybody have any advice?
how many miles is on this car?
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Old 09-05-2013, 07:37 PM   #16
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fuel treatment/ injector cleaner



how many miles is on this car?
56,000

I replaced the plugs, and fuel filter today. and put some lucas fuel treatment in. also used a 87 octane street tune from bama and it went down to about 10.5 in that area. after 30 minutes of driving after all those things added. also went by raffield and had everything balanced and checked pressure, no tires issues at all. what the hell is going on with this thing. no leaks either..
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Old 09-05-2013, 08:33 PM   #17
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It you literally just put the fuel treatment in you have to give it a little while to work through the tank and system but hell I've never had that bad of mileage driving the dog **** out of mine
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Old 09-05-2013, 08:43 PM   #18
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I have a 2007 with close to 50,000 miles I have a ford racing cold air intake, headers, dual exhaust with x pipe, and for the most part I run the 87 octane street tune from Bama. My fuel mileage doesn't change when I change tunes it seems to stay about the same. If I am real froggy with it I get 16mpg . for the most part I average 19 mpg. On a road trip I get 21 almost 22 mpg and that's doing mostly 80 to 90 mph.
This may be a dumb question but have you changed tire sizes on your car and if so did you reprogram the speedometer for the different tire size? If you have a smart phone you can check your speed with your gps.
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Old 09-05-2013, 08:49 PM   #19
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no new tires or anything either. cant figure out what the hell it is. but its beginning to irritate me very much.

---------- Post added at 09:49 PM ---------- Previous post was at 09:48 PM ----------

and might i add that i drive like a grandma also.. dont heavy foot or anything very often.
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Old 09-05-2013, 08:55 PM   #20
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I have 373, 89 octane tune, cold air intake and the lowest I ever got was 16 mpgs. On a trip to Houston I averaged 23 mpg at 80 mph
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Old 09-05-2013, 10:24 PM   #21
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Even when I drive carefully I can't get my mpg over 15 I'm not sure what could cause it but I do almost all city driving
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Old 09-06-2013, 03:39 AM   #22
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i've seen that at the automatic, it really helps to take your foot off the acceleration pedal and let it go by inertia instead of keeping the speed with the accel pedal. also at about 40mph mine gets the best mpg. i'm waiting for those retrofit hybrid kits to add, it really should be interesting other solution i can't find
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Old 09-06-2013, 09:22 AM   #23
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whats the retrofit hybrid thing you speak of?
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Old 09-06-2013, 10:16 AM   #24
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ECA Systems

These guys are the closest to releasing an universal kit that should double one's mileage. also, i've heard something about the Indian government funding a similar project. but there's nothing useful on the market yet

---------- Post added at 06:16 PM ---------- Previous post was at 06:14 PM ----------

[QUOTE=silverskoundrel;1787306]fuel treatment/ injector cleaner

I did use a similar thing from X1R but while it was in the tank i got about 1 extra mpg, after, nothing
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Old 09-06-2013, 10:26 AM   #25
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I get 12.9 right now with my 00' GT. I feel your pain.
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Old 09-06-2013, 10:27 AM   #26
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I did use a similar thing from X1R but while it was in the tank i got about 1 extra mpg, after, nothing
I suppose its better than nothing!
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Old 09-06-2013, 01:17 PM   #27
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X1R is still in business?? I used this stuff in highschool and haven't seen it since. I used the friction reducer in the PS pump on all my Fords. Made them pretty quiet.
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Old 09-06-2013, 06:02 PM   #28
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Yup, X1R still have many products and in Europe they are bought a lot even though they're not cheap. What's the PS pump?
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Old 09-06-2013, 06:09 PM   #29
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Yup, X1R still have many products and in Europe they are bought a lot even though they're not cheap. What's the PS pump?
Power steering pump. Lol. Our older fords have a kind of noisy pump so it helps. But I haven't seen X1R anywhere around In a long time so I hope it still works for you.
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Old 09-06-2013, 06:11 PM   #30
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Old 09-06-2013, 06:14 PM   #31
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aaa, nice well i don't see much of the difference but i used it in the engine oil, power steering, transmission... the fuel additive did do some improvements on my pollution so i could pass the car's inspection

---------- Post added at 02:14 AM ---------- Previous post was at 02:12 AM ----------

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hihi nice!
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Old 09-07-2013, 11:34 AM   #32
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Put sea foam in a vacuum line. But do very little. Pour slow. And if you do it right you will hear the engine struggle for a second the rev a lot higher. Keep pouring a little bit more in and the rev the car. If you see blsck smoke comming out of exaust pipe you did it right. It gets rids of all the carbon build up
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Old 09-07-2013, 12:06 PM   #33
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Put sea foam in a vacuum line. But do very little. Pour slow. And if you do it right you will hear the engine struggle for a second the rev a lot higher. Keep pouring a little bit more in and the rev the car. If you see blsck smoke comming out of exaust pipe you did it right. It gets rids of all the carbon build up
wow, this is interesting and will this help with some long term mpg? HP-wise it should work
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Old 09-07-2013, 12:53 PM   #34
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wow, this is interesting and will this help with some long term mpg? HP-wise it should work
Both. Best thing for mpg I found is shift early. Saved a ton of gas that was. I shift at 2-2500 rpm. You don't get a wuole lot of response from the engine in that range but if your just cruising it don't matter. And another thung is don't rev high when you first turn on car. It runs more efficient warm so drive around first before you thrash it.
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Old 09-08-2013, 11:30 PM   #35
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Both. Best thing for mpg I found is shift early. Saved a ton of gas that was. I shift at 2-2500 rpm. You don't get a wuole lot of response from the engine in that range but if your just cruising it don't matter. And another thung is don't rev high when you first turn on car. It runs more efficient warm so drive around first before you thrash it.
I agree! I turn off overdrive on my auto, definitely helps
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