I bought a 1995 F-150 302/5spd in 1998 with just over 100K on it. Previous owner made an ~80Mi round trip commute to work on 4-lane blacktop. I sold it 5yrs later with just under 200K. I replaced the plugs and had the front suspension (tie rods/ball-joints etc) rebuilt right when I bought it. Had the 5spd rebuilt @ 175K, the fork for 2nd/4th was so worn that I only had 1st/3rd/5th to get to the tranny shop.
It used ~1qt of oil every ~2k Mi. When it was 1qt low I'd pull the filter, put on a new filter and dump in 2 fresh qts. Every 10K I'd dump it all. Ran Mobil 1 and didn't ever have even a hint of engine trouble.
