I just bought a 3.0L non turbo supera, its a 1986 with 125,000 miles. what it did not come with is a manual so i have no clu what some of the button and gages are. can somone please tell me what soem of the guages are for, theres one with a shock or stut?? also is this a good year car as far as reliability and HP? is it a easy car to make faster by bolt on products. is it normal to have oil leak around the valve cover. As you can se im pretty lost but i love teh car just a lil usure about it. maybe u guys can help me out? also does this car require premium gasoline?