Hi, New to the forum: 04 V6 Mustang Convertible Automatic

[Mustang Dave]

Filled this morning. 32.2 MPG. The new tires seem to be breaking-in well. 4 consecutive fill-ups over 32 since I installed the underdrive crank pulley.
I've had occasional 32 MPG fill-ups in the past, but those were just "one-in-a-row.

[Thatdippedstang]

What where your previous consecutive fill ups? 4 consecutive at 32+ is really awesome

[Mustang Dave]

Last Summer I got 6 consecutive fill-ups over 31 MPG. My count is currently at 7 consecutive fill-ups over 31 MPG for this Summer.
I'm currently at 30 consecutive fill-ups over 30 MPG. My last fill-up under 30 MPG was January, 2014. Ideal driving conditions make for great fuel economy numbers.
If I could drive 40 MPH around the Indianapolis Motor Speedway for a full tank, I believe I could break 40 MPG.

On edit, I see that your last fill-up was significantly better than the previous fill-up.

[Mustang Dave]

Update: I'm currently at 10 consecutive fill-ups over 31 MPG, 7 consecutive fill-ups over 32 MPG, and 33 consecutive fill-ups over 30 MPG.

[Thatdippedstang]

Wow that is really impressive, Congrats The best I have hit is 21 mpg on a tank, that is with having a bit of fun one day, If only it was manual, then I could do a lot better.

Originally Posted by Mustang Dave

Update: I'm currently at 10 consecutive fill-ups over 31 MPG, 7 consecutive fill-ups over 32 MPG, and 33 consecutive fill-ups over 30 MPG.

[Mustang Dave]

Originally Posted by Thatdippedstang

Wow that is really impressive, Congrats The best I have hit is 21 mpg on a tank, that is with having a bit of fun one day, If only it was manual, then I could do a lot better.

Thanks.
The city is going to be adding another stoplight to my morning commute, bringing the stoplight count to 21 over a distance of about 8 miles. One more opportunity to be the first one through the intersection when the light turns green.
Now that the weather is cooling off and fuel is switching over to winter blend, my economy will be dropping a bit. The switch to Mobil 1 0W-30 in the crankcase got me through last winter without dropping below 30 MPG. Maybe the under drive crankshaft pulley will keep me over 31 this winter. That would be .

[elhigh]

Originally Posted by Mustang Dave

Filled this morning. 32.2 MPG. The new tires seem to be breaking-in well. 4 consecutive fill-ups over 32 since I installed the underdrive crank pulley.
I've had occasional 32 MPG fill-ups in the past, but those were just "one-in-a-row.

I looked at your log. You're doing really, really well, pushing an '04 to a lifetime average over 30. That's fantastic.

[Mustang Dave]

Originally Posted by elhigh

I looked at your log. You're doing really, really well, pushing an '04 to a lifetime average over 30. That's fantastic.

Thanks!
It took me almost 8 years to get my lifetime average over 30. It's NOT impossible to get over 30 MPG with a Mustang. I've done it for over 90 fill-ups. My lifetime average would likely be better if I had found ecomodder.com before I bought my Mustang.
Mine is actually an '07, and the displacement is 2.5% larger than an '04 3.9 Liter. I have overhead cams, while the '04 (if I'm not mistaken) is a push-rod engine. My "EPA combined" estimate is 20 MPG (same as for "04). My daily driving conditions are (mostly) ideal for fuel economy (with a few exceptions).

[elhigh]

<headslap>

'07. Sorry.

Depending on the build date, Dipped's pony might be the 3.8. According to Wikipedia - which means the information is absolutely reliable - FoMoCo didn't start dropping in the 3.9 until October 7 '03. The ratings were the same, however.

Also according to the Wikipedia Oracle of Irrefutable Facts, the Essex 3.8 owes a tip o' the cap to the Buick V6, since the Blue Oval needed a new middlin' large V6 and didn't have one in the stable, and reverse-engineered the Buick.

[Thatdippedstang]

My Pony is a 3.9.

The 3.8 and 3.9 are both Pushrod engines.

My commute isn't ideal, only because I have to go through 7 constant stop signs, up a significant hill to get out of the city, but once i'm on the highway, it is better.