i have a few miles on my bird, and ask my tech about what oil to use and he told me if it was his, he would use 5w30, so i do, he said 5w30 or 10w30 is fine, but never use anything thicker than 10w30 cause it takes longer for the oil to get up to the lifters and stuff. he also told me not to use synth oil cause it will cause leaks in cars with over 50,000 or so.
95 T-bird 4.6
dual Flowmaster mufflers,resonator removed, removed air intake baffle,P245/60R15 Tigar Paws, 3.08 trac-loc rear,
transgo shift kit.
96 Crown Vic LX wifes car
stock, leather,very nice car