Any tips on better habits for a mpg increase? 03 5.4 K&N air filter. I can only go like 260/280 miles till the fuel light comes on. 25 gallon tank. I have 4-5 gallons left when the fuel light comes on.
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Thread: Fuel mileage
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12-10-2013, 01:14 PM #1Senior Member
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Fuel mileage
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12-10-2013, 01:19 PM #2Da Professuh
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14 mpg....ouch. What percentage city/highway driving do you do?
Do you have any mods? The air filter doesn't help at all.4.2L V6 - M5OD | SCT XCal 3 @ JawsRacing | K&N Series-77 | 16" Dual Efans | Magnaflow High-Flows
50W 5000K FX-R Projectors | Philips LumiLED Taillights | 60" Plasmaglow Fire & Ice | 2" Drop Shackles
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12-10-2013, 01:29 PM #3Senior Member
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No mods. Never done anything under the hood. Just get my oil changes and fuel filter changes. 33/12.50/17 mud grapplers. Most of it is "city". city to me, is basically in and out of the throttle. So yeah. Never on the interstate/highway.
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12-10-2013, 02:00 PM #4Da Professuh
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The mud grapplers are going to be the main reason you lost a mpg or two. for a 5.4, I think 15 would be normal for everyday city driving. Combined with E10 fuel, you're right on the money for a 5.4L city driving with larger than normal tires
4.2L V6 - M5OD | SCT XCal 3 @ JawsRacing | K&N Series-77 | 16" Dual Efans | Magnaflow High-Flows
50W 5000K FX-R Projectors | Philips LumiLED Taillights | 60" Plasmaglow Fire & Ice | 2" Drop Shackles
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12-10-2013, 02:01 PM #5Senior Member
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So nothing I can do to gain mpg?
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12-10-2013, 02:09 PM #6Da Professuh
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Get rid of the mud grapplers and put stock tires back on. you'll gain maybe 1mpg. Or go spend $500 and get an econobox like a 90s Civic or something.
4.2L V6 - M5OD | SCT XCal 3 @ JawsRacing | K&N Series-77 | 16" Dual Efans | Magnaflow High-Flows
50W 5000K FX-R Projectors | Philips LumiLED Taillights | 60" Plasmaglow Fire & Ice | 2" Drop Shackles
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12-10-2013, 02:16 PM #7Senior Member
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No chip would help?
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12-10-2013, 02:30 PM #8Da Professuh
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It would change the shifting and give you a couple of extra ponies, but for $400, that's 120 gallons of gas.
4.2L V6 - M5OD | SCT XCal 3 @ JawsRacing | K&N Series-77 | 16" Dual Efans | Magnaflow High-Flows
50W 5000K FX-R Projectors | Philips LumiLED Taillights | 60" Plasmaglow Fire & Ice | 2" Drop Shackles
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12-10-2013, 02:34 PM #9Senior Member
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Hm
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12-10-2013, 06:08 PM #10Senior Member
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Electric fans maybe a minor increase, dump any excess weight like the spare tire since you current tires are way bigger, and drive with a light foot.
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