gas mileage only 14mpg?

[leviathon]

Have any other of you v6 guys experienced this? It's weird Im filling up about every week and 50 bucks adds up after awhile! The only mods I have are full suspension mods and wheels and tires but I cant see that affecting it THAT much

 

[BEAST]

How hard do you drive? Mostly city or hwy? Auto oe manual

 

[07TGGT]

oh deer lord... I'll just leave this one alone

 

[JEWC_Motorsports]

He should post this on FB huh Ryan...........

 

[weather man]

It's in 4.0 tech, who cares. Clear some of the cobwebs away.

 

[Renesis07]

How hard do you drive? Mostly city or hwy? Auto oe manual

This

 

[leviathon]

And its a auto mainly highway but it has been extremely hot here past few weeks so I believe that would certainly not help it out. Probably gives me a reason to put some iridium spark plugs in it




Exactly why I did this

It's in 4.0 tech, who cares. Clear some of the cobwebs away.

 

[Makaveli]

I have an 07 and I get 15mpg with the AC off. Im glad im not the only one lol

if you figure this out let me know, ill do the same


learn to use this:

 

[leviathon]

Damn. Well I noticed that the ac off but turn on the fan helps out. I'm going to change the wires next and keep you updated

I have an 07 and I get 15mpg with the AC off. Im glad im not the only one lol

if you figure this out let me know, ill do the same


learn to use this:

 

[Captainstr8edge]

did you change tire size?? and if so did you change the tune to correct for this?

 

[ford20]

I get like 18 around town 31 on the highway

 

[BlackCDCStang]

whats the miles on the car? Have you changed the fuel filter ever?

 

[leviathon]

About 97kmiles I changed the filter about maybe 20k miles ago. It has 275/40 tires on it had a buddy that had the same size and never really had a problem. I'm probably going to be purchasing a tuner just to go ahead and bite the bullet

 

[BEAST]

Do a top end tune up. Plugs, wires, air filter, do the fuel filter as well. Adding a programer has never netted me any gains in mpg. I get all happy and heavy footed with new found power.

Heavy foot = low mpg.

 

[Renesis07]

Maybe I'm just an oddball, but my car averages 16-18 and I drive it pretty hard. On long roadtrips without stops, I was able to average over 25mpgs. On tanks where I'm just starting it, beating on the car, and parking it, my average is closer to 14.5-15.

Not sure how you're getting 14 from a V6, no it doesn't sound right.

 

[BEAST]

Thats the way my 5.0 is too, I cant figure why that 6 is sucking gas so bad.

 

[The01Cav]

With the mileage and such, maybe the o2 sensors are starting to read slower which will make it slower to react for open and closed loop cycles. That can use up a good amount of fuel. Also have a professional injector cleaning/service done instead of having the off the shelf injector cleaner ran through it.

 

[leviathon]

that could be an idea. so far a/c is off but I run the fan, that does help out some it seems. gas needle isnt half way gone like it usually is. We have had a heat wave roll through here and that is when it started. Maybe heat is my cars weakness wires are on the way now, well see what that does

With the mileage and such, maybe the o2 sensors are starting to read slower which will make it slower to react for open and closed loop cycles. That can use up a good amount of fuel. Also have a professional injector cleaning/service done instead of having the off the shelf injector cleaner ran through it.

 

[dream07]

Lots of good ideas. About May, I noticed my mileage was down to under 15mpg. I tried a lot of these ideas, spending a lot of money, and saw no gains. If you find something, let us know. My Explorer had this same engine and it guzzled gas too. My car is an automatic with no mods.

I bought a Ford new coil pack, Ford plug wires, E3 sparkplugs, Ford air filter, Ford fuel filter, JLT oil vapor catch can, all 4 Ford O2 sensors. I then thought my cats might be a restriction and bought the BBK manifold-back with cats dual exhaust conversion. Still no gain.

 

[19COBRA93]

I'm averaging about 14 with my 800hp 5.4L.

Isn't the whole point to driving a V6, getting good mileage? I'd drive it off a cliff if I got that kind of mileage out of a V6 Mustang. Even my AWD V6 Escape averages 18. Is someone stealing your gas at night? Fuel leak? A few dead bodies in the trunk? Parachute? Do you drive around in 1st gear only?