new here, hi everyone

do you use cruise control to attain your best MPG? I drive 44 miles each way on my communte every day, and about 40 of it is highway...flats and small hills along the way, have just started trying to attain the best MPG I can get.

the weather here is hot and humid (washington dc) so I do use the AC more than I would like.

For the last few days I am currently at 43.1 MPG with stock tire pressure (which I will change this afternoon)