Welcome to the Corolla Forum! :thumbsup::clap:
:thumbup::thumbup1::balloon: :rockon:
I've kept my car pretty much stock. I've made some improvements for fuel economy, which include AMSOIL synthetic motor oil, AMSOIL synthetic transmission fluid, AMSOIL P.i. fuel additive, NGK Iridium spark plugs and Bridgestone Ecopia tires. This has made a very nice improvement in fuel economy, saving me a lot of money. :thumbsup::yes: