You’ll want to start by finding a solid place to mount your car jack, meaning that the jack point—what touches and lifts the car up—needs to be resting against the frame of the car, not anything plastic or any part of the tires. Depending on where you’re working on the car, you’ll want to position the car jack near this area. If you’re working underneath the engine, place the car jack in the front center of the car. Working on either side means centering the car jack somewhere on the frame between the front and rear doors.