whos needs a heater in the summer??

as soon as my mom gets home i gotta change the oil in her rustang, its a 94 and she doesnt take very good care of it, thing sounds like its gonna blow up soon (it rattles alot when u start it up or accelerate hard). she said the oil hasnt been changed in it in 10,000 miles :shocked: if she gives me the money i should do the plugs and wires too since the car has like 110k or so on it.