I drove about 350 miles yesterday with the outside temp being anywhere from 95-115 degrees. When i filled up with 91 before the trip, i reset the counter. Right now I still have about 1/4 tank gas in the car after the 350 mile long trip. Most I have ever with full tank is 390 miles. With 1/4 tank still in the car I am guessing Im gonna hit over 450 to the tank, which i have never was able to do.

My question is: Is this another proof that my car is running extremely lean and working better in extreme heat?
The car felt much better in the heat with A/C blasted the whole trip. I mean it was not faster, it was just running better overall.

I have true dual exhaust and kinetix V plenum.

 

ummm, thats a long ways without filling up! I would make sure you actually have enough gas in there. My G runs better in low idle with AC on also...and gets great gas millage too, however I'm also TT'd