Need some help I bought a 1991 xjs convertible and it has not ran in several years its in very nice shape but I need to know some things to do before I put a new battery in the car and hit the key. it has not ran in 6 years it has been on a trailer in a garage for that long it only shows 41k on the odometer im planning on selling the car after I see if it will run any help would be greatly welcome.