Borisbadenov

Thanks all
So far i have found out I have a bad O2 sensor or bad convertor, fuel gauge doesn't read properly or is off by 1/4 of a tank, i get between 22-24 mpg mixed driving, the transmission is a bit finiky sometimes when it comes to shifting gears from a stopped position but it may just be me and the previous owner did not drive it much at all in the as the last oil change was 1000 miles ago on Feb of 2012.