Hello Mud Club , I am thinking of buying a 1998 LandRover Discovery 3.9 auto , What can i expect MPG 15-20 ? Whats it Worth 1998 5 door 7 Seater 66,000 miles met blue and in very good condition ? what should i look for ? How much for a lpg to be put on the Disco ? thanks for looking and thanks for all info ..