question lang, sa mga stock vehicles how much ba ang weight that needs to be reduce para makasave ng maybe half to a liter sa gas consumption and/or increase mileage by also half to a kilometer. ( under normal driving conditions, walang kaskas, tamang pagpreno and approx. a 150 lb. driver)?

at saka ano ba pwede alisin para gumaan ang ride, syempre di pwede alisin ang mga spare tire, jack and tools..