here you come with logic and shit....down with the van, needs moar truck lol im curious...my diesel gets like 20mpg, vs like 14 with a comparable gas...so the mpg vs increased fuel cost pretty much balances out...but im curious what you mean about "with the maintaining costs associated with diesel, the cost of operation is excessively high"....my maintenance costs have gone down switching from a 5.4 gas to a 7.3 ... less maintenance (all i do is check the air filter and change the oil...no more spark plugs or wires/COPs to mess with)... i havent had any mechanical issue at all besides a CAMP sensor - which Ford gave me for free (didnt use the one they gave me, its in my glovebox as a spare...ordered a better one online)...i guess you could make the argument of oil changes costing more, but i would say that bit of difference would be offset by no longer needing to do plugs/wires...heck, i only put like 16-18k on my truck a year, so my oil only gets changed 2-3 times a year ...i change it 7500-8500 with M1 TDT, independent oil tests show it still lubricating at 10k, but i stay lower to be safe...overall, switching to diesel to save money on maintenance wasnt my goal or even a huge deal, but i have noticed less general repairs and cheaper overall cost/yr than with my old gas truck sorry to derail - you had your truck longer than i did, curious what excessive costs youre talking about.....sure, injectors might go bad etc...but if you look at the mileage you get from injectors, transmission, turbos, etc its usually longer than a gas motor even lasts lol