So I've had this 1999 Ranger with a 3.0 v6 and 5spd manual for a while now and I'm curious what some of you would recommend for it. I'm trying to go anywhere from 5,000 to 7,500 on the oci's and the engine has 138,xxx miles. I got it around 123k so not sure on the history. It's my daily driver and I don't tow or anything of that nature but I use every available RPM (I don't drive around even considering what my mpgs are lol). I went about 10k on Mobil 1 ?w-? (id collect the bottles of Mobil 1 0w20 5w20 and 5w30 that my techs used and drain them into a gallon jug and use that cause its free) and a NAPA Platinum filter but it was pretty dark and needed about a half quart top off (not bad actually)and I'm currently using Peak Full Syn 5w30 and a Prime Guard filter (got a free oil change from work, not the best quality oil for my preferences)