Sorry to start another MPG thread but this ones a bit different. As the board knows I had a leaking gas tank that was replaced a about a month or so ago. After the tank was replaced I was getting decent MPG as 1/2 tank would last me about a week of driving around in my town. At the time the temps where in the upper 90s and low 100s. Well when the temps started to rise, it was time to replace the thermo stat, thermo sensor, front engine purge valve as I was getting a P0440 code before this. Everything was fine for a week, I was not experiencing the stalling as before and I think the gas MPG was decent. Well now that the temps are hovering 108 at times, I have noticed the past few days that my MPG sucks, the stalling seems to want to come back, but doesn't stall? The SES light has not come back on the dash, as I assume the thermostat and purge valve fixed the P0440 code. On 1/4 tank I only got about 30 miles as before it would go for at least 60+ miles. plugs, fuel filter, K & N air filter (no issues after installed), battery, purge valve, ignition switch, thermo stat, thermo sensor all changed within the last 500 miles. The only thing that has changed the heat range now....as before I had the AC on and still 1/2 tank would last a week...now not so much....what do you guys think is the issue?