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Ford Expedition Improving Gas Mileage

43 messages,  Last post on Jul 23, 2009 at 6:00 PM

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#1 of 43 Improving gas mileage by ovrwrkd72 Jan 03, 2007 (7:42 pm)
Does anyone have information on how I can increase my MPG on my 04 EB Expedition? It has the 5.4 and I'm not looking for noise or power, just improved mileage overall. Thanks. Replies to this message: macman246 (Jan 04, 2007 12:19 pm) ahightower (Jan 04, 2007 12:32 pm)
#2 of 43 keep it at 55 mph. by mschmal Jan 04, 2007 (12:01 pm)
Use cruise control when ever possible, this is usually good for 10 to 15%.   Keep the speed under 65 mph. 55 is best.   Imagine the energy it takes to push that big brick through the air?   Mark.
#3 of 43 Re: Improving gas mileage [ovrwrkd72] by macman246 Jan 04, 2007 (12:19 pm)
Replying to: ovrwrkd72 (Jan 03, 2007 7:42 pm) I just took my 5.4 stock '99 Expy on a 1200 mile trip. I got 19.5 mpg on the two 400 mile highway legs by setting the cruise control at 78, disengaging it going up hills, babying the engine getting up to speed, and avoiding downshifts. City mileage dropped down to 14 in the middle of our trip, which is better than the 11 mpg my wife usually gets. Replies to this message: ahightower (Jan 04, 2007 12:32 pm)
#4 of 43 Re: Improving gas mileage [macman246] by ahightower Jan 04, 2007 (12:32 pm)
Replying to: macman246 (Jan 04, 2007 12:19 pm) It's odd, my wife always gets slightly better mileage than I do, yet I'm always complaining at how she floors the throttle. Maybe it's just a different mix of driving and traffic patterns where we typically drive.
#5 of 43 Improving gas mileage by rhelmbright Jan 14, 2007 (3:31 pm)
I am looking at buying a performance chip for my 98 expy. This not only increases performance and HP, but can also give you better gas mileage. Check e-Bay and other sites for good deals. You may drop up to $300-400, but probably well worth the the money.   Also, about every 3rd tank, you should fill your tank up with a high grade of gas to keep your lines clean. This in return will keep your Expy performing well, and still getting the best possible gas mileage Replies to this message: mschmal (Jan 16, 2007 4:09 pm)
#6 of 43 Re: Improving gas mileage [rhelmbright] by mschmal Jan 16, 2007 (4:09 pm)
Replying to: rhelmbright (Jan 14, 2007 3:31 pm) Do NOT use higher octane gas in your Expedition. This engine was designed for 87 and the higher octane gas my not burn completely as it is harder to ignite which could cause build up in your engine.   DO NOT use "generic" gas. Visit Top Tier Gas.   Generic gas does not have sufficient "detergent" to keep your engine clean.   Mark.
#7 of 43 rear door locks by akiestler Feb 17, 2007 (7:49 pm)
03 expedition rear door locks will not unlock or lock with remote or door switch. both sides can anyone help?
#8 of 43 akiestler by lorenceh Mar 11, 2007 (11:31 am)
the exact same problem was happening to my parents expy(i'm only 13). I took out the door locks and put in new custom ones just to see what it did. It worked.dont know how , but it worked.
#9 of 43 GAS! by freewill07 Apr 10, 2007 (10:26 pm)
This car eats up so much gas. I'm switching to a Civic.   -------------------------- www.mvarea.com
#10 of 43 Horrible Gas Mileage by iqbaldhillon2 May 08, 2007 (1:17 pm)
I have owned many Ford's in the past and look forward to keep this up in the future, but I have had one problem with all my Ford's : Gas Mileage. I currently own an '06 Ford Expedition with 40K miles on it. I filled it up yesterday for 81 dollars and today half the tank is gone. The power also seems to be lagging, I remember a couple months ago flying up my driveway, but now it's gives a big exhaust note an get's up. Anyway I am averging 11.2 MPG with my Expedition, my Tundra has way more power and I average 16.6 MPG with that. Is it just me or does anybody else have this problem. Replies to this message: bronsonb (May 08, 2007 4:51 pm) tidester (May 08, 2007 6:14 pm) iqbaldhillon2 (May 09, 2007 3:19 pm) tidester (May 09, 2007 6:53 pm) murphy79clover (Jul 17, 2007 5:50 am) bronsonb (Jul 18, 2007 3:02 am)

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