Regular gas is fine, premium usually is not necessary and is no "better" for your engine. The gas companies want you to think it is better because they make more $$ on it.

 

Thanks Steve...that is what I have heard from other people on the forum.

 

Well, if the motor is designed or tuned to run on premium, you NEED it. If it is not, you don't.

 

One thing I noticed was the entry where it was stated that "I often drive at about 1,750 rpm and below in traffic. This is the cars LEAST efficient state and will eat gas like no tomorrow. The EPA mileage is based on 55mph highway cruising and around town stop and go...NOT sub 20mph in traffic non-stop. I'm sure that this style of driving is affecting your MPG results.

I've said it before and will ask this question again here.

Why do people buy this car and focus on fuel mileage?? It is NOT LOGICAL. This is NOT an economical car. If you want fuel mileage, buy a Honda FIT.

People read the MPG estimate on the sticker and immediately expect those exact results.

 

I've gotten 35mpg at 40mph in 5th gear.... Its a combination of engine load and engine speed that dictates mpg...

 

+1000000000000000000000000000000000000000000000000 00000000000

 

so if everyone elses mustang gt did 20mpg and you get 5mpg with yours you wouldn't care since it is a mustang?

 

I'm going to continue to believe the problem is the driving style until proven otherwise. Stop and go traffic, or even just traffic in 3-4gear will get crap mileage.

Prove me wrong, go on an interstate cruise, burn at least half a tank. Go 150 miles, no traffic, just 65 on cruise control. Refill, calculate. Then if you still got sub 20's mpg, you got a problem.

 

I live in an area with lots of hills, gas up one and brake down the next. Thats half of my daily commute (three miles to work). I get between 9 and 13 mpg. If I take it out on the highway I get 17 to 22, with a top mpg of 26 on a long trip through Illinois using cruse controll. Depends on how and where you drive.

 

That would be an entirely different situation

 

but thats what this thread is about..

 

I believe he was getting somewhere around 13 mpg not 5 mpg. However I wish my Stang got better mpg as well but I love the power

 

What is your percentage of city (less 50 mph, stop and go) and highway driving? If your more than 70% city, there's the reason for the poor mileage.

 

this thread is endless. and there is absolutely nothing wrong with his car.

 

The way I figure it... the problem can be pinpointed with a 4-5 hour day of highway driving. There's plenty of long, flat highways down in the area. Drive about 2 hours highway away turn around and come back...

 

Mine's a dd and i drive 8 miles one way to work with 17 traffic lights and I get an average of 14 mpg. I can get 22 mpg on the hwy at 80 mph and i'm satisfied with it. it's better than I anticipated when I decided to buy it. It's A Muscle Car not a compact.

 

Thomas,

Did you happen to verify if your speedometer is accurate? If it is off, it will be mis-reporting the true number of miles driven.

When I first got my '07 I felt the the speedo was off because it was telling me I was going faster than I felt was correct. Sure enough, after comparing it to the speed indicator on my GPS navigator, I found that the speedo was not correct. I used my SCT programmer to adjust the correct revs/per mile for the wheels and now my speedo is accurate.

I'm not sure that this would account for all of the mileage issue that you have but it may be worth taking a look at.

Mark

 

- little known fact, fuel pumps dont usually burn up, they bake the fuel leaving a varnish on the pump internals creating a break in the contact between the brushes and the stator(?) which prevents the pump motor from operating. When you replace the pump and return your part for a core charge, the parts dealer sells or returns the core and if it isnt worn out they simply clean the varnish off, install a new filter and slap it in a box, all for pennies.

 

what is your average miles per hour??

 

My daily commute to work is around 10-15miles depending on office...and usually driving around 40-50mph...with catching probably 3-4lights