Lately I have been learning a lot from a friend of mine about the long-lasting, virtually maintenance free straight six engines. He's interested in buying somewhere around a F-150 or E-150 with a straight six, but I know that Jeep, Mazda, Isuzu and some other select vehicles have straight six engines (comes from my recent browsing on California Craigslist websites).
My downstairs neighbor has a 2000 Jeep Cherokee Classic 4x4 with a straight six engine, it has close to 160,000 miles on it. He bought it from a local dealership in Reno named Cal Neva Auto for $6,000, and it came with approximately a 6" lift and 35" off-road tires.
Why did straight six engines stop being made after a certain model year? They should bring them back.