a better air intake system on it will help it a little,,and keeping it tuned will help some,,that's about average mileage for it to get,,and that isn't bad considering most people would be thrilled to get that,,most of the cars today are over rated o millage any way,,if they say 30 you can count on 20-25 at the most,,id be satisfied with the 30+,that's pretty good,,i own a repair shop,,and that average for those cars,good luck with it,,i hope this help,s.