32.9 miles per gallon driving my GT!!!

[Gary04GT]

That's right, almost 33mpg on the last leg of my road trip this past weekend returning from the Nortwest Regional PT Event held at Mossyrock, WA (located between Mt. Rainier and Mount St. Helens). I know what you may be thinking--he [B)] didn't "top off" the gas tank so the mileage is not correct. Wrong! In fact, after the pump shut off automatically the first time (which is when I normally stop pumping) I continued to pump until it shut off again. Then, I checked my gas gauge (just to make sure everything was accurate) and the needle showed the normal reading when the tank is totally full. Thus, my conclusion was--NO USER ERROR!!! [|)]

I drove just over 500 miles during this trip. My last "fill-up" was for 115 miles of driving on straight highway, no wind, cruising between 60-80 mph with no traffic slow-downs, and no "lead-foot" on my part. I use Chevron Supreme gasoline (92 octane). My High Output Turbo engine now has over 7000 miles on it and I've been using 5W-30 Mobil 1 since 3700 miles.

Any thoughts on why my gas mileage was so OUTSTANDING? [:I] [:I]

[Mike-in-Orange]

Hmmmmm, comin' down off the mountain so you were goin' downhill the whole way??? That's pretty cool Gary, best I've gotten is about 24.5mpg but my car only has 4000 miles on it.

[Gary04GT]

No, I wasn't coasting or coming down off the mountain. This was on a flat stretch of highway from Centralia driving north on I-5 to Marysville, WA. I just hope this "pretty cool" gas mileage doesn't end when STAGE 1 is installed later this week.

[azptcruiser]

That's good that you were able to get that good of mileage. The best ever that I have been able to get with my GT is 25 and some change. This was a flat stretch (Phoenix to Tucson and back), 65MPH, little wind, little traffic, 70° temperature, and at about 8500 miles on the car.

Not doubting you, but that seems to good to be true! I hope that this type of mileage lasts for you.

You sure you reset your trip odometer?[8D]

[Mike-in-Orange]

Gary, I wouldn't worry about S1 having a negative impact on your mileage....it didn't seem to effect mine one way or the other - on the freeway at least. If you can keep your foot out of it - which is kinda hard to do, especially at first - you should be OK.

By the way, was this ~33mpg vastly different from anything you'd exerienced before?

[sakigt]

Ive NEVER gotten even close to that amount. Looks like your engine broken in quite nicely.

[Gary04GT]

quote:Originally posted by azptcruiser

That's good that you were able to get that good of mileage...Not doubting you, but that seems to good to be true!...You sure you reset your trip odometer?[8D]

I agree--"too good to be true"--but, I have not found the "missing link" to refute this fact. Since I keep all my car's documentation in a little book the odometer has no bearing on my findings. It is very puzzling since I've never heard of anyone with a GT getting over 30mpg, let alone 32.9mpg--that seems impossible! [:I] [8D] Maybe, my car is truly "one of a kind"?

This was only the second road trip that I have taken with my GT. The first one was last October when I drove 900 miles down and back to Bend, Oregon. The engine only had about 2000 miles on it at the time and my best gas mileage for the trip was 26.3mpg. The best "highway gas mileage" since then has been 26.9mpg with 4373 miles on the odometer.

Just thought of one new factor to consider--[u]BENEVENTO Custom Sunroof Wind Deflector</u>--which was installed on my car at the Mossyrock PT Event. It is very substantial and streamlined. Could this be what has made the difference and significantly improved highway gas mileage???[:I] [:I] [:I]

[Gary04GT]

Is this modification the reason for my significantly improved highway gas mileage? It was installed on my car just prior to my drive home from Mossyrock.


BENEVENTO CUSTOM SUNROOF WIND DEFLECTOR

Could this possibly be the "missing link"? [:I]

[Mike-in-Orange]

quote:BENEVENTO CUSTOM SUNROOF WIND DEFLECTOR

Could this possible be the "missing link"?

In a word....uh-uh. I've got the exact same on mine and, well..... damn I wish I was gettin' your kind of mileage!

Oh, hey, did you just do a fresh wax job???[]

[Gary04GT]

quote:Originally posted by Mike-in-Orange
...Oh, hey, did you just do a fresh wax job???[]

Yes! Last week I applied Gary's "turbomangt" [u]Professional Paint Sealant</u>. [^]