Under your same logic, you should turn in your man card for buying an Auto.


Or else just stop being a jerk and allow someone to get a little bit more milage out of their car while still enjoying it.

 

my stock 2012 gt is giving 18 in the city and 28 to 30 on the highway, I am only doing 65mph on the highway though.I use only shell 93 oct

 

For my manual with 3.73's I get the best mileage around town shifting before 3k and skip gears. For example 1,3,5 or 2,4,6. And when downshifting in town I'll go to 3rd or 4th instead of 2nd. Highway cruising keep it around 2k. Hope this helps.

 

Modifications for increasing fuel economy sounds plausible in theory, but in practice, it would be more cost effective to simply manage the use of the accelerator, ensure your tires are set to the recommended pressures, and use fuel without ethanol. Without a way to duplicate the atmospheric and load conditions consistently, making the changes and then running a tank through most likely won't account for the variability.

That said, if I were looking at aerodynamic aids, there will be a tradeoff between drag and being slippery at speed on the highway vs around-town driving. And, of course, that is where throttle pedal management comes into play.

Good luck!

 

First, if you're trying to increase MPG, you have no business driving at any speed at which the aerodynamics and down-force elements will come into play. Driving at 65mph is barely, and I mean barely going to engage any aerodynamic effects designed to force the car onto the pavement. Adding or removing down-force components will be a waste of time. Secondly, as others have said, drive like an 80-year old with nowhere to be and don't let the revs go above 2000. You'll save gas. Without driving extremely conservatively, any additions to the car that are designed to improve fuel mileage will provide minimal improvement at best.

This is why I said that trying to improve mpg in a Mustang is counterproductive: You have to drive the car in such a way that you might as well have bought something other than a Mustang, because you're not saving a drop of fuel if you drive it at all like Mustangs are advertised to be driven. It's an aggressive car. It's not a Prius.

 

Nick I see you ordered your car on 2/12/12 so I assume it is still has
very low mileage. If that's the case you may want to get it some time. I found with my '11 F150 the mileage increased after approx 3000 miles. I hear this is the case with many of the others with 5.0's.

 

Agreed, didn't see that. Mine got better with more miles. Really noticed it around 10k on mine

 

I gotta agree with the other guy. If you buy a v8 (aka v great) you expect this. I'm all for more mpg bc I commute a a full hour every day in my mustang which doesn't get as good mileage as the 5.0s. At the same time I didn't notice my mileage went down enough to concern me when I actually started having fun with my car. Have fun with your mustang, and if you're looking for more mileage let me have it and go but a v6 mustang or a fuel efficient Honda or something

 

If all youre going to say is, "buy something else" your post is useless. I give up. Try another forum, OP.

 

All I did was present both sides of the discussion and say what I've found to be the best solution...

 

That's true David. My little F150 has 9800 miles now, and is close to the sticker numbers. Good enough for me. I'll know soon about the 5.0 in the Stang I hope. The ETA is 05/02, but as they say "it's subject to change".

 

Any mods to increase MPG will give a very very minimal increase, and won't be worth the money spent on them. Adding spoilers/splitters/etc will definitely only add drag. Negative effects will be unnoticed, but it definitely won't help.

As others have stated, the best thing you can do is just take it easy on the accelerator. I've found that this takes way too much effort and isn't worth it to me. But if MPG is what you what...that's how to do it.

 

John, what mileage are you seeing? I do "city" driving 95% of the time and I'm usually not light on the gas. I usually Avg about 10.5-13 mpg. Even shifting under 3000 and driving easy, it'll only spike up to maybe 14-15 max.

 

I'm thinking decreasing the weight will add to the mpg numbers. Here's my plan...

1. Never put more than 2 gallons of gas in the tank.
2. Remove any unnecessary weight: (1) wife (2) kids (3) license plates (4) floor mats (5) rear seats (6) passenger seat (7) rearview mirrors (8) spare tire, jack, etc.
3. Take the downhill route both directions if possible and coast a lot.
4. Don't stop at red lights or stop signs. This wastes gas when you start up again.

That's all I can think of for now.

 

lol...
I believe it was Jeremy Clarkson who suggested we all do without braking to conserve energy.

 

Yes!! You should be president!!

 

Exactly what I was thinking while reading through this thread. "Let's spend hundreds of dollars and hope to gain 1 mph if you're lucky". You spend over 30k on a v8 muscle car and then worry about mileage. The op bought the wrong car, seriously. I don't care how much gas costs, its worth every penny.

 

When did this site become douchebags-r-us? Guy asks about MPGs and gets ripped up. Way to rep the site.

 

Yeah, jerks

 

EDIT: whatever