well with my last fill up i am getting right at 40 mpg with mostly city driving and some high way. and i do coast down every hill i can. my car is a 94 civic cx it does have a 16 valve engine insted of the stock 8 valve. but i did keep the factory intake and ehaust manafold and the stock cx transmission. and i do have vx wheels with 50psi in the tires. i am trying to track down a vx swap but what are some things i could do to help my mpg?i dont really want to do anything i cant keep when i get a vx swap. but i was considering a light weight flywheel any one had any good mpg increase with one? any help would be appriceated!