Bought my 18 XD 5.0 SV two years ago for $40,000($56,000 list), never had a problem. Changed oil/filters every 5,000, tranny/dif at 30,000, used additive 8oz every fill-up. Used truck generally for commuting (60 roundtrip) and weekend shore commutes (200 roundtrip) only towed 4-5 times (2-5 tons). Put on Toyo AT3's 20,000 ago. Was concerned/paranoid about all possible potential issues, so gave it up last week ($34,500 from dealer Conicelli/Springfield) and bought a 21 4-runner(Venture Edition). Although I really miss the Titan, the new ride is awesome and I can rest assured of troublefree cruising for the next 300,000. Thanks all for all your info over the last two years and Happy Motoring!!!!