Now you have a stickshift you can learn to drive for real. Put it in neutral as much as possible.
My buddy had an 04 corolla and was getting 38-42. Just drive slow, study and understand the 100+ Hypermiling Tips on the top of the page.
Personally I record my driving with a camera and rewatch it later and see how un-eco it was and try and fix it next time.
City driving can be better then highway if you know the roads,only low power is needed to keep legal speed and almost no dangerous traffic, no problem coasting into the shoulder with 4ways to let other people pass, less aero drag at low speed. many more reasons, good luck buddy
