HI, NEW TO THE SITE, JUST CHANGED MY OIL IN MY 03 RX1. TAKE OUT THE BATTERY, BATTERY BRACE AND TOOL BOX, SO YOU CAN PULL THE FILTER OUT THRU THE TOOL BOX CAVITY. PUT ON A NEW FILTER GREASE THE O-RING, PUT IT ALL BACK TOGERTGER. DON'T OVER TIGHTEN THE DRAIN PLUG BOLTS, I PUT ONE QRT OIL IN THE...