My mileage is dropping!

[lowndex]

My first tank yielded 37.6 mpg. My second tank yielded 35.4 mpg. I checked my third tank mileage and found I azm down to 32.2 mpg. What is going on?
* I drive mostly highway miles to and from work.
* I only use 91 octane Chevron gasoline.
* I am using the automatic D gear more often to yield better mileage.

Do I need to reset the computer? Why is my mpg declining?

[saskdiesel]

Using the A/C more because its warmer out?

[Dunerunner]

Driving harder because you've found how sporty your smart is?

[lowndex]

Originally Posted by saskdiesel

Using the A/C more because its warmer out?

I remember now. There was a good sized thread about AC reduces your mileage by 4-7 mpg. I forget the knowledgable owner's name, but he confirmed the findings with his Scangauge II (no wind, uphill or other factors involved).

Piss. I guess I need solar panels to power my AC!!!!!