98,000 miles 2001 ranger. Leaking oil pan gasket that is getting worse, and will eventually have to be fixed. Only ever had 5w20. Had all of its oil changes at the dealer for first 60,000 miles, then I started changing it. I have used full synthetic twice and synthetic blend the rest of the time. I am looking for a good oil to go in it without spending to much. It always seems to turn oil dark faster than most cars. I don't mind frequent oil changes as long as the oil doesn't cost an arm and a leg.