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#1
01-11-2008, 06:40 PM
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gas mileage
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#4
01-11-2008, 08:25 PM
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i have 15 city, and 21 highway. After installing Afe on my 4.4i, i get 23 on hwy now, i haven't checked city though....and of course, depends on how you step on the gas.
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#5
01-13-2008, 07:24 AM
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20mpg is pretty darn good for a 6 cyl moving 5000+lbs - normally the 4.4 gets better mileage than a 3.0 - given your stated driving habits, it sounds like you have a rare car where everything works better than designed
it does happen - I heard Rolls-Royce had been trying to buy back one of its jet engines because it had not showed any wear during servicing and was generating beyond peak power - they wanted to tear it apart and find out what they did right
__________________
Mark         _______________________________2001 X5 4.4i topaz blue/sand Sport, complete Dinan S2  , hitch, V1, tint, BSW Stage 1, Alpine INA-W910BT___________ Life is not fair! You can't protect people from their own stupidity! Laughter makes life worth living
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#6
01-13-2008, 03:51 PM
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Maybe having the sport model ,you get less gas mileage with the bigger tires.I have the non sport with 17" wheels.All highway driving I get 25,combined in town and driving back and forth to school,25 miles each way,I get 19 - 20.
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#7
01-13-2008, 07:35 PM
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I get 23.5 on the freeway, and 19-20 in town. I have AFE cold air in-take. If your mpg is dropping, change your plugs. I did last week and what a difference.
__________________
_________________________________________________ 2010 X5M /// R63 AMG...Wifey's 540HP Family Hualer 2001 X5 3.0i Sport 335,448 miles & counting... SMG M3 Steering wheel E46 Stainless Racing Headers 4.6is Exhaust Turner Pulleys Afe Intake Brembo drilled rotors PowerFlex Bushings Hualingan 30mm H&R Spacers rear 20mm H&R Spacers front Bavarian Autosport High-Performance Coils Active Autowerke's Performance Software
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#8
01-13-2008, 07:37 PM
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Quote:
__________________
An unwavering defender of those I see worth protecting. "promote the general welfare, not provide the general welfare" We the People of the United States, in Order to form a more perfect Union, establish Justice, insure domestic Tranquility, provide for the common defence, promote the general Welfare, and secure the Blessings of Liberty to ourselves and our Posterity, do ordain and establish this Constitution for the United States of America.
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#9
01-13-2008, 07:53 PM
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Quote:
I get 13.4 mpg and most of my driving is on the freeway 
__________________
2008 X5 4.8i | Wheels: Summer> style 336 20" RFT; Winter> style 214 Ferric Grey 20" RFT | Aero kit | ESS E-Flash tune | V1 | LCI Rear Tail Lights | Coding completed | Engine replaced at 90K
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#10
01-13-2008, 08:15 PM
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I'm not sure considering my X5 4.4 wouldn't have got that if it was falling off a cliff with the engine off
 Mine averaged 17.9mpg all highway which was very good. Even BMW specs don't have them higher then 19mpg.
__________________
An unwavering defender of those I see worth protecting. "promote the general welfare, not provide the general welfare" We the People of the United States, in Order to form a more perfect Union, establish Justice, insure domestic Tranquility, provide for the common defence, promote the general Welfare, and secure the Blessings of Liberty to ourselves and our Posterity, do ordain and establish this Constitution for the United States of America.
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